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Finding the Fourth Proportional to 437,685.15, 656,527.86 and 138,196.02

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Solution

The fourth proportional to 437,685.15, 656,527.86 and 138,196.02 is: 207,294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,685.15 : 656,527.86 = 138,196.02 : x
  2. Step 2: Convert to fraction form
    437,685.15/656,527.86 = 138,196.02/x
  3. Step 3: Cross multiply
    437,685.15x = 656,527.86 × 138,196.02
  4. Step 4: Simplify right side
    437,685.15x = 90,729,537,271.12
  5. Step 5: Solve for x
    x = 90,729,537,271.12/437,685.15
  6. Step 6: Final answer
    x = 207,294.07

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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.