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Finding the Fourth Proportional to 282,079.76, 423,265.13 and 187,375.37

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Solution

The fourth proportional to 282,079.76, 423,265.13 and 187,375.37 is: 281,159.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,079.76 : 423,265.13 = 187,375.37 : x
  2. Step 2: Convert to fraction form
    282,079.76/423,265.13 = 187,375.37/x
  3. Step 3: Cross multiply
    282,079.76x = 423,265.13 × 187,375.37
  4. Step 4: Simplify right side
    282,079.76x = 79,309,457,288.65
  5. Step 5: Solve for x
    x = 79,309,457,288.65/282,079.76
  6. Step 6: Final answer
    x = 281,159.69

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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.