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Finding the Fourth Proportional to 342,504.25, 513,091.67 and 252,383.45

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Solution

The fourth proportional to 342,504.25, 513,091.67 and 252,383.45 is: 378,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,504.25 : 513,091.67 = 252,383.45 : x
  2. Step 2: Convert to fraction form
    342,504.25/513,091.67 = 252,383.45/x
  3. Step 3: Cross multiply
    342,504.25x = 513,091.67 × 252,383.45
  4. Step 4: Simplify right side
    342,504.25x = 129,495,842,013.49
  5. Step 5: Solve for x
    x = 129,495,842,013.49/342,504.25
  6. Step 6: Final answer
    x = 378,085.36

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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.