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Finding the Fourth Proportional to 218,099.70, 300,956.85 and 127,476.90

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Solution

The fourth proportional to 218,099.70, 300,956.85 and 127,476.90 is: 175,906.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,099.70 : 300,956.85 = 127,476.90 : x
  2. Step 2: Convert to fraction form
    218,099.70/300,956.85 = 127,476.90/x
  3. Step 3: Cross multiply
    218,099.70x = 300,956.85 × 127,476.90
  4. Step 4: Simplify right side
    218,099.70x = 38,365,046,271.77
  5. Step 5: Solve for x
    x = 38,365,046,271.77/218,099.70
  6. Step 6: Final answer
    x = 175,906.00

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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.