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Finding the Fourth Proportional to 230,618.43, 318,252.92 and 130,015.71

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Solution

The fourth proportional to 230,618.43, 318,252.92 and 130,015.71 is: 179,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,618.43 : 318,252.92 = 130,015.71 : x
  2. Step 2: Convert to fraction form
    230,618.43/318,252.92 = 130,015.71/x
  3. Step 3: Cross multiply
    230,618.43x = 318,252.92 × 130,015.71
  4. Step 4: Simplify right side
    230,618.43x = 41,377,878,703.29
  5. Step 5: Solve for x
    x = 41,377,878,703.29/230,618.43
  6. Step 6: Final answer
    x = 179,421.39

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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.