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Finding the Fourth Proportional to 268,543.78, 402,729.44 and 88,588.76

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Solution

The fourth proportional to 268,543.78, 402,729.44 and 88,588.76 is: 132,854.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,543.78 : 402,729.44 = 88,588.76 : x
  2. Step 2: Convert to fraction form
    268,543.78/402,729.44 = 88,588.76/x
  3. Step 3: Cross multiply
    268,543.78x = 402,729.44 × 88,588.76
  4. Step 4: Simplify right side
    268,543.78x = 35,677,303,394.00
  5. Step 5: Solve for x
    x = 35,677,303,394.00/268,543.78
  6. Step 6: Final answer
    x = 132,854.70

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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.