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Finding the Fourth Proportional to 291,919.32, 437,892.03 and 89,500.86

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Solution

The fourth proportional to 291,919.32, 437,892.03 and 89,500.86 is: 134,255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,919.32 : 437,892.03 = 89,500.86 : x
  2. Step 2: Convert to fraction form
    291,919.32/437,892.03 = 89,500.86/x
  3. Step 3: Cross multiply
    291,919.32x = 437,892.03 × 89,500.86
  4. Step 4: Simplify right side
    291,919.32x = 39,191,713,272.15
  5. Step 5: Solve for x
    x = 39,191,713,272.15/291,919.32
  6. Step 6: Final answer
    x = 134,255.29

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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.