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Finding the Fourth Proportional to 261,257.85, 360,612.39 and 170,627.90

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Solution

The fourth proportional to 261,257.85, 360,612.39 and 170,627.90 is: 235,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,257.85 : 360,612.39 = 170,627.90 : x
  2. Step 2: Convert to fraction form
    261,257.85/360,612.39 = 170,627.90/x
  3. Step 3: Cross multiply
    261,257.85x = 360,612.39 × 170,627.90
  4. Step 4: Simplify right side
    261,257.85x = 61,530,533,016.62
  5. Step 5: Solve for x
    x = 61,530,533,016.62/261,257.85
  6. Step 6: Final answer
    x = 235,516.49

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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.