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Finding the Fourth Proportional to 484,956.10, 727,434.16 and 147,998.48

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Solution

The fourth proportional to 484,956.10, 727,434.16 and 147,998.48 is: 221,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,956.10 : 727,434.16 = 147,998.48 : x
  2. Step 2: Convert to fraction form
    484,956.10/727,434.16 = 147,998.48/x
  3. Step 3: Cross multiply
    484,956.10x = 727,434.16 × 147,998.48
  4. Step 4: Simplify right side
    484,956.10x = 107,659,149,980.08
  5. Step 5: Solve for x
    x = 107,659,149,980.08/484,956.10
  6. Step 6: Final answer
    x = 221,997.72

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Similar ratio
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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.