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Finding the Fourth Proportional to 225,666.90, 338,403.15 and 113,303.70

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Solution

The fourth proportional to 225,666.90, 338,403.15 and 113,303.70 is: 169,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,666.90 : 338,403.15 = 113,303.70 : x
  2. Step 2: Convert to fraction form
    225,666.90/338,403.15 = 113,303.70/x
  3. Step 3: Cross multiply
    225,666.90x = 338,403.15 × 113,303.70
  4. Step 4: Simplify right side
    225,666.90x = 38,342,328,986.66
  5. Step 5: Solve for x
    x = 38,342,328,986.66/225,666.90
  6. Step 6: Final answer
    x = 169,906.75

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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.