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Finding the Fourth Proportional to 279,425.54, 385,607.30 and 152,101.13

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Solution

The fourth proportional to 279,425.54, 385,607.30 and 152,101.13 is: 209,899.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,425.54 : 385,607.30 = 152,101.13 : x
  2. Step 2: Convert to fraction form
    279,425.54/385,607.30 = 152,101.13/x
  3. Step 3: Cross multiply
    279,425.54x = 385,607.30 × 152,101.13
  4. Step 4: Simplify right side
    279,425.54x = 58,651,303,377.71
  5. Step 5: Solve for x
    x = 58,651,303,377.71/279,425.54
  6. Step 6: Final answer
    x = 209,899.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.