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Finding the Fourth Proportional to 228,306.56, 315,151.31 and 204,391.67

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Solution

The fourth proportional to 228,306.56, 315,151.31 and 204,391.67 is: 282,139.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,306.56 : 315,151.31 = 204,391.67 : x
  2. Step 2: Convert to fraction form
    228,306.56/315,151.31 = 204,391.67/x
  3. Step 3: Cross multiply
    228,306.56x = 315,151.31 × 204,391.67
  4. Step 4: Simplify right side
    228,306.56x = 64,414,301,488.81
  5. Step 5: Solve for x
    x = 64,414,301,488.81/228,306.56
  6. Step 6: Final answer
    x = 282,139.52

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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.