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Finding the Fourth Proportional to 170,878.80, 256,318.20 and 161,037.30

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Solution

The fourth proportional to 170,878.80, 256,318.20 and 161,037.30 is: 241,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,878.80 : 256,318.20 = 161,037.30 : x
  2. Step 2: Convert to fraction form
    170,878.80/256,318.20 = 161,037.30/x
  3. Step 3: Cross multiply
    170,878.80x = 256,318.20 × 161,037.30
  4. Step 4: Simplify right side
    170,878.80x = 41,276,790,868.86
  5. Step 5: Solve for x
    x = 41,276,790,868.86/170,878.80
  6. Step 6: Final answer
    x = 241,555.95

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1.5x scale

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.