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Finding the Fourth Proportional to 174,685.64, 261,841.64 and 90,360.95

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Solution

The fourth proportional to 174,685.64, 261,841.64 and 90,360.95 is: 135,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,685.64 : 261,841.64 = 90,360.95 : x
  2. Step 2: Convert to fraction form
    174,685.64/261,841.64 = 90,360.95/x
  3. Step 3: Cross multiply
    174,685.64x = 261,841.64 × 90,360.95
  4. Step 4: Simplify right side
    174,685.64x = 23,660,257,578.95
  5. Step 5: Solve for x
    x = 23,660,257,578.95/174,685.64
  6. Step 6: Final answer
    x = 135,444.78

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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.