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Finding the Fourth Proportional to 311,555.52, 429,966.84 and 180,759.96

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Solution

The fourth proportional to 311,555.52, 429,966.84 and 180,759.96 is: 249,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,555.52 : 429,966.84 = 180,759.96 : x
  2. Step 2: Convert to fraction form
    311,555.52/429,966.84 = 180,759.96/x
  3. Step 3: Cross multiply
    311,555.52x = 429,966.84 × 180,759.96
  4. Step 4: Simplify right side
    311,555.52x = 77,720,788,799.73
  5. Step 5: Solve for x
    x = 77,720,788,799.73/311,555.52
  6. Step 6: Final answer
    x = 249,460.48

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1.5x scale

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.