Home / 280,747.62-387,475.56-178,817.04

Finding the Fourth Proportional to 280,747.62, 387,475.56 and 178,817.04

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Solution

The fourth proportional to 280,747.62, 387,475.56 and 178,817.04 is: 246,795.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,747.62 : 387,475.56 = 178,817.04 : x
  2. Step 2: Convert to fraction form
    280,747.62/387,475.56 = 178,817.04/x
  3. Step 3: Cross multiply
    280,747.62x = 387,475.56 × 178,817.04
  4. Step 4: Simplify right side
    280,747.62x = 69,287,232,711.54
  5. Step 5: Solve for x
    x = 69,287,232,711.54/280,747.62
  6. Step 6: Final answer
    x = 246,795.44

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1.5x scale

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.