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Finding the Fourth Proportional to 372,017.90, 558,156.45 and 161,806.70

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Solution

The fourth proportional to 372,017.90, 558,156.45 and 161,806.70 is: 242,766.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,017.90 : 558,156.45 = 161,806.70 : x
  2. Step 2: Convert to fraction form
    372,017.90/558,156.45 = 161,806.70/x
  3. Step 3: Cross multiply
    372,017.90x = 558,156.45 × 161,806.70
  4. Step 4: Simplify right side
    372,017.90x = 90,313,453,258.22
  5. Step 5: Solve for x
    x = 90,313,453,258.22/372,017.90
  6. Step 6: Final answer
    x = 242,766.42

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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.