Home / 247,178.81-341,143.16-156,543.21

Finding the Fourth Proportional to 247,178.81, 341,143.16 and 156,543.21

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Solution

The fourth proportional to 247,178.81, 341,143.16 and 156,543.21 is: 216,052.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,178.81 : 341,143.16 = 156,543.21 : x
  2. Step 2: Convert to fraction form
    247,178.81/341,143.16 = 156,543.21/x
  3. Step 3: Cross multiply
    247,178.81x = 341,143.16 × 156,543.21
  4. Step 4: Simplify right side
    247,178.81x = 53,403,644,553.23
  5. Step 5: Solve for x
    x = 53,403,644,553.23/247,178.81
  6. Step 6: Final answer
    x = 216,052.68

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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.