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Finding the Fourth Proportional to 508,261.92, 762,420.24 and 134,274.72

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Solution

The fourth proportional to 508,261.92, 762,420.24 and 134,274.72 is: 201,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,261.92 : 762,420.24 = 134,274.72 : x
  2. Step 2: Convert to fraction form
    508,261.92/762,420.24 = 134,274.72/x
  3. Step 3: Cross multiply
    508,261.92x = 762,420.24 × 134,274.72
  4. Step 4: Simplify right side
    508,261.92x = 102,373,764,248.33
  5. Step 5: Solve for x
    x = 102,373,764,248.33/508,261.92
  6. Step 6: Final answer
    x = 201,419.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.