Home / 373,901.18-515,981-204,135.30

Finding the Fourth Proportional to 373,901.18, 515,981 and 204,135.30

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Solution

The fourth proportional to 373,901.18, 515,981 and 204,135.30 is: 281,705.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,901.18 : 515,981 = 204,135.30 : x
  2. Step 2: Convert to fraction form
    373,901.18/515,981 = 204,135.30/x
  3. Step 3: Cross multiply
    373,901.18x = 515,981 × 204,135.30
  4. Step 4: Simplify right side
    373,901.18x = 105,329,936,229.30
  5. Step 5: Solve for x
    x = 105,329,936,229.30/373,901.18
  6. Step 6: Final answer
    x = 281,705.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.