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Finding the Fourth Proportional to 486,164.40, 729,246.60 and 170,653.20

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Solution

The fourth proportional to 486,164.40, 729,246.60 and 170,653.20 is: 255,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,164.40 : 729,246.60 = 170,653.20 : x
  2. Step 2: Convert to fraction form
    486,164.40/729,246.60 = 170,653.20/x
  3. Step 3: Cross multiply
    486,164.40x = 729,246.60 × 170,653.20
  4. Step 4: Simplify right side
    486,164.40x = 124,448,265,879.12
  5. Step 5: Solve for x
    x = 124,448,265,879.12/486,164.40
  6. Step 6: Final answer
    x = 255,979.80

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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.