Home / 486,217.21-729,440.38-166,372.56

Finding the Fourth Proportional to 486,217.21, 729,440.38 and 166,372.56

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Solution

The fourth proportional to 486,217.21, 729,440.38 and 166,372.56 is: 249,598.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,217.21 : 729,440.38 = 166,372.56 : x
  2. Step 2: Convert to fraction form
    486,217.21/729,440.38 = 166,372.56/x
  3. Step 3: Cross multiply
    486,217.21x = 729,440.38 × 166,372.56
  4. Step 4: Simplify right side
    486,217.21x = 121,358,863,387.97
  5. Step 5: Solve for x
    x = 121,358,863,387.97/486,217.21
  6. Step 6: Final answer
    x = 249,598.04

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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.