Home / 442,139.20-663,138.40-146,651.20

Finding the Fourth Proportional to 442,139.20, 663,138.40 and 146,651.20

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Solution

The fourth proportional to 442,139.20, 663,138.40 and 146,651.20 is: 219,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,139.20 : 663,138.40 = 146,651.20 : x
  2. Step 2: Convert to fraction form
    442,139.20/663,138.40 = 146,651.20/x
  3. Step 3: Cross multiply
    442,139.20x = 663,138.40 × 146,651.20
  4. Step 4: Simplify right side
    442,139.20x = 97,250,042,126.08
  5. Step 5: Solve for x
    x = 97,250,042,126.08/442,139.20
  6. Step 6: Final answer
    x = 219,953.45

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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.