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Finding the Fourth Proportional to 282,376.80, 423,176.40 and 187,336.80

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Solution

The fourth proportional to 282,376.80, 423,176.40 and 187,336.80 is: 280,747.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,376.80 : 423,176.40 = 187,336.80 : x
  2. Step 2: Convert to fraction form
    282,376.80/423,176.40 = 187,336.80/x
  3. Step 3: Cross multiply
    282,376.80x = 423,176.40 × 187,336.80
  4. Step 4: Simplify right side
    282,376.80x = 79,276,512,611.52
  5. Step 5: Solve for x
    x = 79,276,512,611.52/282,376.80
  6. Step 6: Final answer
    x = 280,747.26

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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.