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Finding the Fourth Proportional to 291,873.42, 437,794.11 and 89,469.18

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Solution

The fourth proportional to 291,873.42, 437,794.11 and 89,469.18 is: 134,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,873.42 : 437,794.11 = 89,469.18 : x
  2. Step 2: Convert to fraction form
    291,873.42/437,794.11 = 89,469.18/x
  3. Step 3: Cross multiply
    291,873.42x = 437,794.11 × 89,469.18
  4. Step 4: Simplify right side
    291,873.42x = 39,169,080,030.53
  5. Step 5: Solve for x
    x = 39,169,080,030.53/291,873.42
  6. Step 6: Final answer
    x = 134,198.86

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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.