Home / 268,575.20-402,780.30-88,627.40

Finding the Fourth Proportional to 268,575.20, 402,780.30 and 88,627.40

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Solution

The fourth proportional to 268,575.20, 402,780.30 and 88,627.40 is: 132,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,575.20 : 402,780.30 = 88,627.40 : x
  2. Step 2: Convert to fraction form
    268,575.20/402,780.30 = 88,627.40/x
  3. Step 3: Cross multiply
    268,575.20x = 402,780.30 × 88,627.40
  4. Step 4: Simplify right side
    268,575.20x = 35,697,370,760.22
  5. Step 5: Solve for x
    x = 35,697,370,760.22/268,575.20
  6. Step 6: Final answer
    x = 132,913.88

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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.