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Finding the Fourth Proportional to 151,999.70, 227,999.55 and 143,834.90

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Solution

The fourth proportional to 151,999.70, 227,999.55 and 143,834.90 is: 215,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,999.70 : 227,999.55 = 143,834.90 : x
  2. Step 2: Convert to fraction form
    151,999.70/227,999.55 = 143,834.90/x
  3. Step 3: Cross multiply
    151,999.70x = 227,999.55 × 143,834.90
  4. Step 4: Simplify right side
    151,999.70x = 32,794,292,474.30
  5. Step 5: Solve for x
    x = 32,794,292,474.30/151,999.70
  6. Step 6: Final answer
    x = 215,752.35

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1.5x scale

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.