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Finding the Fourth Proportional to 342,144.80, 513,168.60 and 117,515.60

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Solution

The fourth proportional to 342,144.80, 513,168.60 and 117,515.60 is: 176,256.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,144.80 : 513,168.60 = 117,515.60 : x
  2. Step 2: Convert to fraction form
    342,144.80/513,168.60 = 117,515.60/x
  3. Step 3: Cross multiply
    342,144.80x = 513,168.60 × 117,515.60
  4. Step 4: Simplify right side
    342,144.80x = 60,305,315,930.16
  5. Step 5: Solve for x
    x = 60,305,315,930.16/342,144.80
  6. Step 6: Final answer
    x = 176,256.71

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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.