Home / 311,916.40-467,644.20-124,831.60

Finding the Fourth Proportional to 311,916.40, 467,644.20 and 124,831.60

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Solution

The fourth proportional to 311,916.40, 467,644.20 and 124,831.60 is: 187,155.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,916.40 : 467,644.20 = 124,831.60 : x
  2. Step 2: Convert to fraction form
    311,916.40/467,644.20 = 124,831.60/x
  3. Step 3: Cross multiply
    311,916.40x = 467,644.20 × 124,831.60
  4. Step 4: Simplify right side
    311,916.40x = 58,376,773,716.72
  5. Step 5: Solve for x
    x = 58,376,773,716.72/311,916.40
  6. Step 6: Final answer
    x = 187,155.19

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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.