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Finding the Fourth Proportional to 437,599.61, 656,399.52 and 138,103.62

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Solution

The fourth proportional to 437,599.61, 656,399.52 and 138,103.62 is: 207,155.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,599.61 : 656,399.52 = 138,103.62 : x
  2. Step 2: Convert to fraction form
    437,599.61/656,399.52 = 138,103.62/x
  3. Step 3: Cross multiply
    437,599.61x = 656,399.52 × 138,103.62
  4. Step 4: Simplify right side
    437,599.61x = 90,651,149,878.26
  5. Step 5: Solve for x
    x = 90,651,149,878.26/437,599.61
  6. Step 6: Final answer
    x = 207,155.47

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1.5x scale

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.