Home / 287,942.34-431,577.24-216,635.92

Finding the Fourth Proportional to 287,942.34, 431,577.24 and 216,635.92

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Solution

The fourth proportional to 287,942.34, 431,577.24 and 216,635.92 is: 324,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,942.34 : 431,577.24 = 216,635.92 : x
  2. Step 2: Convert to fraction form
    287,942.34/431,577.24 = 216,635.92/x
  3. Step 3: Cross multiply
    287,942.34x = 431,577.24 × 216,635.92
  4. Step 4: Simplify right side
    287,942.34x = 93,495,131,156.42
  5. Step 5: Solve for x
    x = 93,495,131,156.42/287,942.34
  6. Step 6: Final answer
    x = 324,700.88

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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.