Home / 318,954.11-478,265.09-150,429.20

Finding the Fourth Proportional to 318,954.11, 478,265.09 and 150,429.20

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Solution

The fourth proportional to 318,954.11, 478,265.09 and 150,429.20 is: 225,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,954.11 : 478,265.09 = 150,429.20 : x
  2. Step 2: Convert to fraction form
    318,954.11/478,265.09 = 150,429.20/x
  3. Step 3: Cross multiply
    318,954.11x = 478,265.09 × 150,429.20
  4. Step 4: Simplify right side
    318,954.11x = 71,945,031,733.16
  5. Step 5: Solve for x
    x = 71,945,031,733.16/318,954.11
  6. Step 6: Final answer
    x = 225,565.47

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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.