Home / 429,966.87-645,209.52-149,680.95

Finding the Fourth Proportional to 429,966.87, 645,209.52 and 149,680.95

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Solution

The fourth proportional to 429,966.87, 645,209.52 and 149,680.95 is: 224,611.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,966.87 : 645,209.52 = 149,680.95 : x
  2. Step 2: Convert to fraction form
    429,966.87/645,209.52 = 149,680.95/x
  3. Step 3: Cross multiply
    429,966.87x = 645,209.52 × 149,680.95
  4. Step 4: Simplify right side
    429,966.87x = 96,575,573,902.64
  5. Step 5: Solve for x
    x = 96,575,573,902.64/429,966.87
  6. Step 6: Final answer
    x = 224,611.66

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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.