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Finding the Fourth Proportional to 373,394.52, 515,264.10 and 212,227.20

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Solution

The fourth proportional to 373,394.52, 515,264.10 and 212,227.20 is: 292,861.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,394.52 : 515,264.10 = 212,227.20 : x
  2. Step 2: Convert to fraction form
    373,394.52/515,264.10 = 212,227.20/x
  3. Step 3: Cross multiply
    373,394.52x = 515,264.10 × 212,227.20
  4. Step 4: Simplify right side
    373,394.52x = 109,353,057,203.52
  5. Step 5: Solve for x
    x = 109,353,057,203.52/373,394.52
  6. Step 6: Final answer
    x = 292,861.98

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1.5x scale

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.