Home / 461,269.12-690,657.28-239,186.56

Finding the Fourth Proportional to 461,269.12, 690,657.28 and 239,186.56

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Solution

The fourth proportional to 461,269.12, 690,657.28 and 239,186.56 is: 358,133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,269.12 : 690,657.28 = 239,186.56 : x
  2. Step 2: Convert to fraction form
    461,269.12/690,657.28 = 239,186.56/x
  3. Step 3: Cross multiply
    461,269.12x = 690,657.28 × 239,186.56
  4. Step 4: Simplify right side
    461,269.12x = 165,195,938,942.16
  5. Step 5: Solve for x
    x = 165,195,938,942.16/461,269.12
  6. Step 6: Final answer
    x = 358,133.53

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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.