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Finding the Fourth Proportional to 171,273.80, 256,888.02 and 77,758.04

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Solution

The fourth proportional to 171,273.80, 256,888.02 and 77,758.04 is: 116,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,273.80 : 256,888.02 = 77,758.04 : x
  2. Step 2: Convert to fraction form
    171,273.80/256,888.02 = 77,758.04/x
  3. Step 3: Cross multiply
    171,273.80x = 256,888.02 × 77,758.04
  4. Step 4: Simplify right side
    171,273.80x = 19,975,108,934.68
  5. Step 5: Solve for x
    x = 19,975,108,934.68/171,273.80
  6. Step 6: Final answer
    x = 116,626.76

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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.