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Finding the Fourth Proportional to 486,020.10, 729,030.15 and 170,363.10

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Solution

The fourth proportional to 486,020.10, 729,030.15 and 170,363.10 is: 255,544.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,020.10 : 729,030.15 = 170,363.10 : x
  2. Step 2: Convert to fraction form
    486,020.10/729,030.15 = 170,363.10/x
  3. Step 3: Cross multiply
    486,020.10x = 729,030.15 × 170,363.10
  4. Step 4: Simplify right side
    486,020.10x = 124,199,836,347.47
  5. Step 5: Solve for x
    x = 124,199,836,347.47/486,020.10
  6. Step 6: Final answer
    x = 255,544.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.