Home / 338,931.60-467,531.28-211,385.76

Finding the Fourth Proportional to 338,931.60, 467,531.28 and 211,385.76

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Solution

The fourth proportional to 338,931.60, 467,531.28 and 211,385.76 is: 291,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,931.60 : 467,531.28 = 211,385.76 : x
  2. Step 2: Convert to fraction form
    338,931.60/467,531.28 = 211,385.76/x
  3. Step 3: Cross multiply
    338,931.60x = 467,531.28 × 211,385.76
  4. Step 4: Simplify right side
    338,931.60x = 98,829,454,946.57
  5. Step 5: Solve for x
    x = 98,829,454,946.57/338,931.60
  6. Step 6: Final answer
    x = 291,591.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.