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Finding the Fourth Proportional to 291,590.80, 437,386.02 and 225,127.96

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Solution

The fourth proportional to 291,590.80, 437,386.02 and 225,127.96 is: 337,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,590.80 : 437,386.02 = 225,127.96 : x
  2. Step 2: Convert to fraction form
    291,590.80/437,386.02 = 225,127.96/x
  3. Step 3: Cross multiply
    291,590.80x = 437,386.02 × 225,127.96
  4. Step 4: Simplify right side
    291,590.80x = 98,467,822,415.12
  5. Step 5: Solve for x
    x = 98,467,822,415.12/291,590.80
  6. Step 6: Final answer
    x = 337,691.80

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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.