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Finding the Fourth Proportional to 439,459.70, 659,252.72 and 135,877.53

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Solution

The fourth proportional to 439,459.70, 659,252.72 and 135,877.53 is: 203,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,459.70 : 659,252.72 = 135,877.53 : x
  2. Step 2: Convert to fraction form
    439,459.70/659,252.72 = 135,877.53/x
  3. Step 3: Cross multiply
    439,459.70x = 659,252.72 × 135,877.53
  4. Step 4: Simplify right side
    439,459.70x = 89,577,631,239.38
  5. Step 5: Solve for x
    x = 89,577,631,239.38/439,459.70
  6. Step 6: Final answer
    x = 203,835.83

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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.