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Finding the Fourth Proportional to 151,153.20, 226,904.40 and 81,169.20

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Solution

The fourth proportional to 151,153.20, 226,904.40 and 81,169.20 is: 121,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,153.20 : 226,904.40 = 81,169.20 : x
  2. Step 2: Convert to fraction form
    151,153.20/226,904.40 = 81,169.20/x
  3. Step 3: Cross multiply
    151,153.20x = 226,904.40 × 81,169.20
  4. Step 4: Simplify right side
    151,153.20x = 18,417,648,624.48
  5. Step 5: Solve for x
    x = 18,417,648,624.48/151,153.20
  6. Step 6: Final answer
    x = 121,847.56

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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.