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Finding the Fourth Proportional to 220,434.72, 304,202.94 and 119,834.88

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Solution

The fourth proportional to 220,434.72, 304,202.94 and 119,834.88 is: 165,373.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,434.72 : 304,202.94 = 119,834.88 : x
  2. Step 2: Convert to fraction form
    220,434.72/304,202.94 = 119,834.88/x
  3. Step 3: Cross multiply
    220,434.72x = 304,202.94 × 119,834.88
  4. Step 4: Simplify right side
    220,434.72x = 36,454,122,810.55
  5. Step 5: Solve for x
    x = 36,454,122,810.55/220,434.72
  6. Step 6: Final answer
    x = 165,373.78

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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.