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Finding the Fourth Proportional to 439,572.56, 659,186.31 and 155,202.44

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Solution

The fourth proportional to 439,572.56, 659,186.31 and 155,202.44 is: 232,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,572.56 : 659,186.31 = 155,202.44 : x
  2. Step 2: Convert to fraction form
    439,572.56/659,186.31 = 155,202.44/x
  3. Step 3: Cross multiply
    439,572.56x = 659,186.31 × 155,202.44
  4. Step 4: Simplify right side
    439,572.56x = 102,307,323,726.60
  5. Step 5: Solve for x
    x = 102,307,323,726.60/439,572.56
  6. Step 6: Final answer
    x = 232,742.74

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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.