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Finding the Fourth Proportional to 352,005.10, 527,086.05 and 258,001.90

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Solution

The fourth proportional to 352,005.10, 527,086.05 and 258,001.90 is: 386,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,005.10 : 527,086.05 = 258,001.90 : x
  2. Step 2: Convert to fraction form
    352,005.10/527,086.05 = 258,001.90/x
  3. Step 3: Cross multiply
    352,005.10x = 527,086.05 × 258,001.90
  4. Step 4: Simplify right side
    352,005.10x = 135,989,202,363.50
  5. Step 5: Solve for x
    x = 135,989,202,363.50/352,005.10
  6. Step 6: Final answer
    x = 386,327.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.