Home / 318,867.30-440,067.96-238,154.76

Finding the Fourth Proportional to 318,867.30, 440,067.96 and 238,154.76

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Solution

The fourth proportional to 318,867.30, 440,067.96 and 238,154.76 is: 328,676.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,867.30 : 440,067.96 = 238,154.76 : x
  2. Step 2: Convert to fraction form
    318,867.30/440,067.96 = 238,154.76/x
  3. Step 3: Cross multiply
    318,867.30x = 440,067.96 × 238,154.76
  4. Step 4: Simplify right side
    318,867.30x = 104,804,279,397.49
  5. Step 5: Solve for x
    x = 104,804,279,397.49/318,867.30
  6. Step 6: Final answer
    x = 328,676.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.