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Finding the Fourth Proportional to 343,452.33, 512,676.84 and 318,125.73

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Solution

The fourth proportional to 343,452.33, 512,676.84 and 318,125.73 is: 474,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,452.33 : 512,676.84 = 318,125.73 : x
  2. Step 2: Convert to fraction form
    343,452.33/512,676.84 = 318,125.73/x
  3. Step 3: Cross multiply
    343,452.33x = 512,676.84 × 318,125.73
  4. Step 4: Simplify right side
    343,452.33x = 163,095,693,979.09
  5. Step 5: Solve for x
    x = 163,095,693,979.09/343,452.33
  6. Step 6: Final answer
    x = 474,871.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.