Home / 353,750.81-488,123.03-198,696.15

Finding the Fourth Proportional to 353,750.81, 488,123.03 and 198,696.15

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Solution

The fourth proportional to 353,750.81, 488,123.03 and 198,696.15 is: 274,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,750.81 : 488,123.03 = 198,696.15 : x
  2. Step 2: Convert to fraction form
    353,750.81/488,123.03 = 198,696.15/x
  3. Step 3: Cross multiply
    353,750.81x = 488,123.03 × 198,696.15
  4. Step 4: Simplify right side
    353,750.81x = 96,988,164,346.72
  5. Step 5: Solve for x
    x = 96,988,164,346.72/353,750.81
  6. Step 6: Final answer
    x = 274,170.87

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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.