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Finding the Fourth Proportional to 371,989.32, 558,055.80 and 158,754.12

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Solution

The fourth proportional to 371,989.32, 558,055.80 and 158,754.12 is: 238,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,989.32 : 558,055.80 = 158,754.12 : x
  2. Step 2: Convert to fraction form
    371,989.32/558,055.80 = 158,754.12/x
  3. Step 3: Cross multiply
    371,989.32x = 558,055.80 × 158,754.12
  4. Step 4: Simplify right side
    371,989.32x = 88,593,657,439.90
  5. Step 5: Solve for x
    x = 88,593,657,439.90/371,989.32
  6. Step 6: Final answer
    x = 238,161.83

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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.