Home / 218,934.28-328,445.90-69,197.96

Finding the Fourth Proportional to 218,934.28, 328,445.90 and 69,197.96

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Solution

The fourth proportional to 218,934.28, 328,445.90 and 69,197.96 is: 103,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,934.28 : 328,445.90 = 69,197.96 : x
  2. Step 2: Convert to fraction form
    218,934.28/328,445.90 = 69,197.96/x
  3. Step 3: Cross multiply
    218,934.28x = 328,445.90 × 69,197.96
  4. Step 4: Simplify right side
    218,934.28x = 22,727,786,250.36
  5. Step 5: Solve for x
    x = 22,727,786,250.36/218,934.28
  6. Step 6: Final answer
    x = 103,811.00

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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.