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Finding the Fourth Proportional to 265,982.40, 398,903.40 and 132,764.40

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Solution

The fourth proportional to 265,982.40, 398,903.40 and 132,764.40 is: 199,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,982.40 : 398,903.40 = 132,764.40 : x
  2. Step 2: Convert to fraction form
    265,982.40/398,903.40 = 132,764.40/x
  3. Step 3: Cross multiply
    265,982.40x = 398,903.40 × 132,764.40
  4. Step 4: Simplify right side
    265,982.40x = 52,960,170,558.96
  5. Step 5: Solve for x
    x = 52,960,170,558.96/265,982.40
  6. Step 6: Final answer
    x = 199,111.56

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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.