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Finding the Fourth Proportional to 372,874.32, 514,566.36 and 203,108.40

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Solution

The fourth proportional to 372,874.32, 514,566.36 and 203,108.40 is: 280,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,874.32 : 514,566.36 = 203,108.40 : x
  2. Step 2: Convert to fraction form
    372,874.32/514,566.36 = 203,108.40/x
  3. Step 3: Cross multiply
    372,874.32x = 514,566.36 × 203,108.40
  4. Step 4: Simplify right side
    372,874.32x = 104,512,750,073.42
  5. Step 5: Solve for x
    x = 104,512,750,073.42/372,874.32
  6. Step 6: Final answer
    x = 280,289.48

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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.