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Finding the Fourth Proportional to 230,454.71, 318,030.31 and 133,680.97

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Solution

The fourth proportional to 230,454.71, 318,030.31 and 133,680.97 is: 184,481.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,454.71 : 318,030.31 = 133,680.97 : x
  2. Step 2: Convert to fraction form
    230,454.71/318,030.31 = 133,680.97/x
  3. Step 3: Cross multiply
    230,454.71x = 318,030.31 × 133,680.97
  4. Step 4: Simplify right side
    230,454.71x = 42,514,600,330.20
  5. Step 5: Solve for x
    x = 42,514,600,330.20/230,454.71
  6. Step 6: Final answer
    x = 184,481.37

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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.