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Finding the Fourth Proportional to 342,550.88, 513,161.36 and 252,430

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Solution

The fourth proportional to 342,550.88, 513,161.36 and 252,430 is: 378,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,550.88 : 513,161.36 = 252,430 : x
  2. Step 2: Convert to fraction form
    342,550.88/513,161.36 = 252,430/x
  3. Step 3: Cross multiply
    342,550.88x = 513,161.36 × 252,430
  4. Step 4: Simplify right side
    342,550.88x = 129,537,322,104.80
  5. Step 5: Solve for x
    x = 129,537,322,104.80/342,550.88
  6. Step 6: Final answer
    x = 378,154.98

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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.