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Finding the Fourth Proportional to 168,242.40, 252,370.08 and 43,580.16

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Solution

The fourth proportional to 168,242.40, 252,370.08 and 43,580.16 is: 65,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,242.40 : 252,370.08 = 43,580.16 : x
  2. Step 2: Convert to fraction form
    168,242.40/252,370.08 = 43,580.16/x
  3. Step 3: Cross multiply
    168,242.40x = 252,370.08 × 43,580.16
  4. Step 4: Simplify right side
    168,242.40x = 10,998,328,465.61
  5. Step 5: Solve for x
    x = 10,998,328,465.61/168,242.40
  6. Step 6: Final answer
    x = 65,371.92

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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.