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Finding the Fourth Proportional to 373,301.91, 515,156.76 and 212,152.80

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Solution

The fourth proportional to 373,301.91, 515,156.76 and 212,152.80 is: 292,770.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,301.91 : 515,156.76 = 212,152.80 : x
  2. Step 2: Convert to fraction form
    373,301.91/515,156.76 = 212,152.80/x
  3. Step 3: Cross multiply
    373,301.91x = 515,156.76 × 212,152.80
  4. Step 4: Simplify right side
    373,301.91x = 109,291,949,072.93
  5. Step 5: Solve for x
    x = 109,291,949,072.93/373,301.91
  6. Step 6: Final answer
    x = 292,770.93

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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.