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Finding the Fourth Proportional to 478,052.70, 717,165.45 and 240,798.30

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Solution

The fourth proportional to 478,052.70, 717,165.45 and 240,798.30 is: 361,240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,052.70 : 717,165.45 = 240,798.30 : x
  2. Step 2: Convert to fraction form
    478,052.70/717,165.45 = 240,798.30/x
  3. Step 3: Cross multiply
    478,052.70x = 717,165.45 × 240,798.30
  4. Step 4: Simplify right side
    478,052.70x = 172,692,221,178.74
  5. Step 5: Solve for x
    x = 172,692,221,178.74/478,052.70
  6. Step 6: Final answer
    x = 361,240.97

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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.