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Finding the Fourth Proportional to 475,337.10, 713,122.29 and 138,380.77

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Solution

The fourth proportional to 475,337.10, 713,122.29 and 138,380.77 is: 207,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,337.10 : 713,122.29 = 138,380.77 : x
  2. Step 2: Convert to fraction form
    475,337.10/713,122.29 = 138,380.77/x
  3. Step 3: Cross multiply
    475,337.10x = 713,122.29 × 138,380.77
  4. Step 4: Simplify right side
    475,337.10x = 98,682,412,485.77
  5. Step 5: Solve for x
    x = 98,682,412,485.77/475,337.10
  6. Step 6: Final answer
    x = 207,605.11

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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.