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Finding the Fourth Proportional to 291,874.42, 437,795.61 and 89,470.18

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Solution

The fourth proportional to 291,874.42, 437,795.61 and 89,470.18 is: 134,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,874.42 : 437,795.61 = 89,470.18 : x
  2. Step 2: Convert to fraction form
    291,874.42/437,795.61 = 89,470.18/x
  3. Step 3: Cross multiply
    291,874.42x = 437,795.61 × 89,470.18
  4. Step 4: Simplify right side
    291,874.42x = 39,169,652,029.91
  5. Step 5: Solve for x
    x = 39,169,652,029.91/291,874.42
  6. Step 6: Final answer
    x = 134,200.36

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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.