Home / 219,901.30-329,851.95-143,793.70

Finding the Fourth Proportional to 219,901.30, 329,851.95 and 143,793.70

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Solution

The fourth proportional to 219,901.30, 329,851.95 and 143,793.70 is: 215,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,901.30 : 329,851.95 = 143,793.70 : x
  2. Step 2: Convert to fraction form
    219,901.30/329,851.95 = 143,793.70/x
  3. Step 3: Cross multiply
    219,901.30x = 329,851.95 × 143,793.70
  4. Step 4: Simplify right side
    219,901.30x = 47,430,632,342.72
  5. Step 5: Solve for x
    x = 47,430,632,342.72/219,901.30
  6. Step 6: Final answer
    x = 215,690.55

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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.