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Finding the Fourth Proportional to 253,241.28, 349,241.76 and 217,419.84

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Solution

The fourth proportional to 253,241.28, 349,241.76 and 217,419.84 is: 299,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,241.28 : 349,241.76 = 217,419.84 : x
  2. Step 2: Convert to fraction form
    253,241.28/349,241.76 = 217,419.84/x
  3. Step 3: Cross multiply
    253,241.28x = 349,241.76 × 217,419.84
  4. Step 4: Simplify right side
    253,241.28x = 75,932,087,580.52
  5. Step 5: Solve for x
    x = 75,932,087,580.52/253,241.28
  6. Step 6: Final answer
    x = 299,840.88

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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.