Home / 486,042.57-729,182.17-161,829.81

Finding the Fourth Proportional to 486,042.57, 729,182.17 and 161,829.81

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Solution

The fourth proportional to 486,042.57, 729,182.17 and 161,829.81 is: 242,784.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,042.57 : 729,182.17 = 161,829.81 : x
  2. Step 2: Convert to fraction form
    486,042.57/729,182.17 = 161,829.81/x
  3. Step 3: Cross multiply
    486,042.57x = 729,182.17 × 161,829.81
  4. Step 4: Simplify right side
    486,042.57x = 118,003,412,228.78
  5. Step 5: Solve for x
    x = 118,003,412,228.78/486,042.57
  6. Step 6: Final answer
    x = 242,784.11

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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.