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Finding the Fourth Proportional to 373,160, 514,961.16 and 203,394.80

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Solution

The fourth proportional to 373,160, 514,961.16 and 203,394.80 is: 280,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,160 : 514,961.16 = 203,394.80 : x
  2. Step 2: Convert to fraction form
    373,160/514,961.16 = 203,394.80/x
  3. Step 3: Cross multiply
    373,160x = 514,961.16 × 203,394.80
  4. Step 4: Simplify right side
    373,160x = 104,740,422,145.97
  5. Step 5: Solve for x
    x = 104,740,422,145.97/373,160
  6. Step 6: Final answer
    x = 280,685.02

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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.