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Finding the Fourth Proportional to 230,998.39, 318,774.40 and 129,025.33

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Solution

The fourth proportional to 230,998.39, 318,774.40 and 129,025.33 is: 178,053.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,998.39 : 318,774.40 = 129,025.33 : x
  2. Step 2: Convert to fraction form
    230,998.39/318,774.40 = 129,025.33/x
  3. Step 3: Cross multiply
    230,998.39x = 318,774.40 × 129,025.33
  4. Step 4: Simplify right side
    230,998.39x = 41,129,969,916.55
  5. Step 5: Solve for x
    x = 41,129,969,916.55/230,998.39
  6. Step 6: Final answer
    x = 178,053.06

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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.