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Finding the Fourth Proportional to 487,162.68, 730,747.86 and 171,547.32

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Solution

The fourth proportional to 487,162.68, 730,747.86 and 171,547.32 is: 257,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,162.68 : 730,747.86 = 171,547.32 : x
  2. Step 2: Convert to fraction form
    487,162.68/730,747.86 = 171,547.32/x
  3. Step 3: Cross multiply
    487,162.68x = 730,747.86 × 171,547.32
  4. Step 4: Simplify right side
    487,162.68x = 125,357,836,978.74
  5. Step 5: Solve for x
    x = 125,357,836,978.74/487,162.68
  6. Step 6: Final answer
    x = 257,322.33

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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.