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Finding the Fourth Proportional to 198,945, 298,472.18 and 58,703.63

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Solution

The fourth proportional to 198,945, 298,472.18 and 58,703.63 is: 88,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,945 : 298,472.18 = 58,703.63 : x
  2. Step 2: Convert to fraction form
    198,945/298,472.18 = 58,703.63/x
  3. Step 3: Cross multiply
    198,945x = 298,472.18 × 58,703.63
  4. Step 4: Simplify right side
    198,945x = 17,521,398,634.13
  5. Step 5: Solve for x
    x = 17,521,398,634.13/198,945
  6. Step 6: Final answer
    x = 88,071.57

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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.