Home / 268,465.28-402,446.40-90,847.92

Finding the Fourth Proportional to 268,465.28, 402,446.40 and 90,847.92

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Solution

The fourth proportional to 268,465.28, 402,446.40 and 90,847.92 is: 136,186.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,465.28 : 402,446.40 = 90,847.92 : x
  2. Step 2: Convert to fraction form
    268,465.28/402,446.40 = 90,847.92/x
  3. Step 3: Cross multiply
    268,465.28x = 402,446.40 × 90,847.92
  4. Step 4: Simplify right side
    268,465.28x = 36,561,418,351.49
  5. Step 5: Solve for x
    x = 36,561,418,351.49/268,465.28
  6. Step 6: Final answer
    x = 136,186.77

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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.