Home / 259,631.10-389,446.65-147,267.90

Finding the Fourth Proportional to 259,631.10, 389,446.65 and 147,267.90

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Solution

The fourth proportional to 259,631.10, 389,446.65 and 147,267.90 is: 220,901.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,631.10 : 389,446.65 = 147,267.90 : x
  2. Step 2: Convert to fraction form
    259,631.10/389,446.65 = 147,267.90/x
  3. Step 3: Cross multiply
    259,631.10x = 389,446.65 × 147,267.90
  4. Step 4: Simplify right side
    259,631.10x = 57,352,990,307.54
  5. Step 5: Solve for x
    x = 57,352,990,307.54/259,631.10
  6. Step 6: Final answer
    x = 220,901.85

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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.