Home / 268,200.24-402,344.10-90,717.72

Finding the Fourth Proportional to 268,200.24, 402,344.10 and 90,717.72

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Solution

The fourth proportional to 268,200.24, 402,344.10 and 90,717.72 is: 136,091.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,200.24 : 402,344.10 = 90,717.72 : x
  2. Step 2: Convert to fraction form
    268,200.24/402,344.10 = 90,717.72/x
  3. Step 3: Cross multiply
    268,200.24x = 402,344.10 × 90,717.72
  4. Step 4: Simplify right side
    268,200.24x = 36,499,739,407.45
  5. Step 5: Solve for x
    x = 36,499,739,407.45/268,200.24
  6. Step 6: Final answer
    x = 136,091.37

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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.