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Finding the Fourth Proportional to 373,187.90, 514,999.28 and 203,422.02

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Solution

The fourth proportional to 373,187.90, 514,999.28 and 203,422.02 is: 280,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,187.90 : 514,999.28 = 203,422.02 : x
  2. Step 2: Convert to fraction form
    373,187.90/514,999.28 = 203,422.02/x
  3. Step 3: Cross multiply
    373,187.90x = 514,999.28 × 203,422.02
  4. Step 4: Simplify right side
    373,187.90x = 104,762,193,836.15
  5. Step 5: Solve for x
    x = 104,762,193,836.15/373,187.90
  6. Step 6: Final answer
    x = 280,722.38

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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.