Home / 268,733.52-402,983.52-81,701.28

Finding the Fourth Proportional to 268,733.52, 402,983.52 and 81,701.28

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Solution

The fourth proportional to 268,733.52, 402,983.52 and 81,701.28 is: 122,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,733.52 : 402,983.52 = 81,701.28 : x
  2. Step 2: Convert to fraction form
    268,733.52/402,983.52 = 81,701.28/x
  3. Step 3: Cross multiply
    268,733.52x = 402,983.52 × 81,701.28
  4. Step 4: Simplify right side
    268,733.52x = 32,924,269,402.91
  5. Step 5: Solve for x
    x = 32,924,269,402.91/268,733.52
  6. Step 6: Final answer
    x = 122,516.42

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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.