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Finding the Fourth Proportional to 488,479.30, 732,848.55 and 172,903.30

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Solution

The fourth proportional to 488,479.30, 732,848.55 and 172,903.30 is: 259,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,479.30 : 732,848.55 = 172,903.30 : x
  2. Step 2: Convert to fraction form
    488,479.30/732,848.55 = 172,903.30/x
  3. Step 3: Cross multiply
    488,479.30x = 732,848.55 × 172,903.30
  4. Step 4: Simplify right side
    488,479.30x = 126,711,932,695.22
  5. Step 5: Solve for x
    x = 126,711,932,695.22/488,479.30
  6. Step 6: Final answer
    x = 259,400.82

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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.