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Finding the Fourth Proportional to 351,545.64, 485,162.76 and 198,611.88

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Solution

The fourth proportional to 351,545.64, 485,162.76 and 198,611.88 is: 274,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,545.64 : 485,162.76 = 198,611.88 : x
  2. Step 2: Convert to fraction form
    351,545.64/485,162.76 = 198,611.88/x
  3. Step 3: Cross multiply
    351,545.64x = 485,162.76 × 198,611.88
  4. Step 4: Simplify right side
    351,545.64x = 96,359,087,869.59
  5. Step 5: Solve for x
    x = 96,359,087,869.59/351,545.64
  6. Step 6: Final answer
    x = 274,101.22

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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.