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Finding the Fourth Proportional to 342,058.80, 512,213.40 and 252,829.20

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Solution

The fourth proportional to 342,058.80, 512,213.40 and 252,829.20 is: 378,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,058.80 : 512,213.40 = 252,829.20 : x
  2. Step 2: Convert to fraction form
    342,058.80/512,213.40 = 252,829.20/x
  3. Step 3: Cross multiply
    342,058.80x = 512,213.40 × 252,829.20
  4. Step 4: Simplify right side
    342,058.80x = 129,502,504,151.28
  5. Step 5: Solve for x
    x = 129,502,504,151.28/342,058.80
  6. Step 6: Final answer
    x = 378,597.20

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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.