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Finding the Fourth Proportional to 373,000.80, 514,778.04 and 211,865.88

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Solution

The fourth proportional to 373,000.80, 514,778.04 and 211,865.88 is: 292,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,000.80 : 514,778.04 = 211,865.88 : x
  2. Step 2: Convert to fraction form
    373,000.80/514,778.04 = 211,865.88/x
  3. Step 3: Cross multiply
    373,000.80x = 514,778.04 × 211,865.88
  4. Step 4: Simplify right side
    373,000.80x = 109,063,902,449.28
  5. Step 5: Solve for x
    x = 109,063,902,449.28/373,000.80
  6. Step 6: Final answer
    x = 292,395.89

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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.