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Finding the Fourth Proportional to 373,171.72, 514,961.70 and 203,402.12

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Solution

The fourth proportional to 373,171.72, 514,961.70 and 203,402.12 is: 280,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,171.72 : 514,961.70 = 203,402.12 : x
  2. Step 2: Convert to fraction form
    373,171.72/514,961.70 = 203,402.12/x
  3. Step 3: Cross multiply
    373,171.72x = 514,961.70 × 203,402.12
  4. Step 4: Simplify right side
    373,171.72x = 104,744,301,498.80
  5. Step 5: Solve for x
    x = 104,744,301,498.80/373,171.72
  6. Step 6: Final answer
    x = 280,686.60

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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.