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Finding the Fourth Proportional to 437,142.98, 655,715.64 and 121,599.92

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Solution

The fourth proportional to 437,142.98, 655,715.64 and 121,599.92 is: 182,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,142.98 : 655,715.64 = 121,599.92 : x
  2. Step 2: Convert to fraction form
    437,142.98/655,715.64 = 121,599.92/x
  3. Step 3: Cross multiply
    437,142.98x = 655,715.64 × 121,599.92
  4. Step 4: Simplify right side
    437,142.98x = 79,734,969,366.75
  5. Step 5: Solve for x
    x = 79,734,969,366.75/437,142.98
  6. Step 6: Final answer
    x = 182,400.21

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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.