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Finding the Fourth Proportional to 169,516.84, 254,280.50 and 85,280.43

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Solution

The fourth proportional to 169,516.84, 254,280.50 and 85,280.43 is: 127,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,516.84 : 254,280.50 = 85,280.43 : x
  2. Step 2: Convert to fraction form
    169,516.84/254,280.50 = 85,280.43/x
  3. Step 3: Cross multiply
    169,516.84x = 254,280.50 × 85,280.43
  4. Step 4: Simplify right side
    169,516.84x = 21,685,150,380.62
  5. Step 5: Solve for x
    x = 21,685,150,380.62/169,516.84
  6. Step 6: Final answer
    x = 127,923.28

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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.