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Finding the Fourth Proportional to 497,221.78, 686,170.56 and 270,867.28

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Solution

The fourth proportional to 497,221.78, 686,170.56 and 270,867.28 is: 373,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,221.78 : 686,170.56 = 270,867.28 : x
  2. Step 2: Convert to fraction form
    497,221.78/686,170.56 = 270,867.28/x
  3. Step 3: Cross multiply
    497,221.78x = 686,170.56 × 270,867.28
  4. Step 4: Simplify right side
    497,221.78x = 185,861,153,203.28
  5. Step 5: Solve for x
    x = 185,861,153,203.28/497,221.78
  6. Step 6: Final answer
    x = 373,799.30

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1.5x scale

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.