Home / 254,701.11-382,029.48-86,217.78

Finding the Fourth Proportional to 254,701.11, 382,029.48 and 86,217.78

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Solution

The fourth proportional to 254,701.11, 382,029.48 and 86,217.78 is: 129,319.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,701.11 : 382,029.48 = 86,217.78 : x
  2. Step 2: Convert to fraction form
    254,701.11/382,029.48 = 86,217.78/x
  3. Step 3: Cross multiply
    254,701.11x = 382,029.48 × 86,217.78
  4. Step 4: Simplify right side
    254,701.11x = 32,937,733,660.15
  5. Step 5: Solve for x
    x = 32,937,733,660.15/254,701.11
  6. Step 6: Final answer
    x = 129,319.16

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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.