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Finding the Fourth Proportional to 171,030.16, 256,302.24 and 80,976.79

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Solution

The fourth proportional to 171,030.16, 256,302.24 and 80,976.79 is: 121,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,030.16 : 256,302.24 = 80,976.79 : x
  2. Step 2: Convert to fraction form
    171,030.16/256,302.24 = 80,976.79/x
  3. Step 3: Cross multiply
    171,030.16x = 256,302.24 × 80,976.79
  4. Step 4: Simplify right side
    171,030.16x = 20,754,532,665.01
  5. Step 5: Solve for x
    x = 20,754,532,665.01/171,030.16
  6. Step 6: Final answer
    x = 121,350.13

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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.