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Finding the Fourth Proportional to 315,452.46, 435,318.60 and 179,483.43

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Solution

The fourth proportional to 315,452.46, 435,318.60 and 179,483.43 is: 247,683.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,452.46 : 435,318.60 = 179,483.43 : x
  2. Step 2: Convert to fraction form
    315,452.46/435,318.60 = 179,483.43/x
  3. Step 3: Cross multiply
    315,452.46x = 435,318.60 × 179,483.43
  4. Step 4: Simplify right side
    315,452.46x = 78,132,475,470.80
  5. Step 5: Solve for x
    x = 78,132,475,470.80/315,452.46
  6. Step 6: Final answer
    x = 247,683.84

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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.