Home / 218,540.07-301,630.19-137,913.48

Finding the Fourth Proportional to 218,540.07, 301,630.19 and 137,913.48

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Solution

The fourth proportional to 218,540.07, 301,630.19 and 137,913.48 is: 190,348.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,540.07 : 301,630.19 = 137,913.48 : x
  2. Step 2: Convert to fraction form
    218,540.07/301,630.19 = 137,913.48/x
  3. Step 3: Cross multiply
    218,540.07x = 301,630.19 × 137,913.48
  4. Step 4: Simplify right side
    218,540.07x = 41,598,868,486.39
  5. Step 5: Solve for x
    x = 41,598,868,486.39/218,540.07
  6. Step 6: Final answer
    x = 190,348.93

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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.