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Finding the Fourth Proportional to 373,283.43, 515,108.92 and 212,116.11

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Solution

The fourth proportional to 373,283.43, 515,108.92 and 212,116.11 is: 292,707.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,283.43 : 515,108.92 = 212,116.11 : x
  2. Step 2: Convert to fraction form
    373,283.43/515,108.92 = 212,116.11/x
  3. Step 3: Cross multiply
    373,283.43x = 515,108.92 × 212,116.11
  4. Step 4: Simplify right side
    373,283.43x = 109,262,900,336.70
  5. Step 5: Solve for x
    x = 109,262,900,336.70/373,283.43
  6. Step 6: Final answer
    x = 292,707.61

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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.