Home / 198,938.48-298,460.76-72,590.36

Finding the Fourth Proportional to 198,938.48, 298,460.76 and 72,590.36

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Solution

The fourth proportional to 198,938.48, 298,460.76 and 72,590.36 is: 108,904.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,938.48 : 298,460.76 = 72,590.36 : x
  2. Step 2: Convert to fraction form
    198,938.48/298,460.76 = 72,590.36/x
  3. Step 3: Cross multiply
    198,938.48x = 298,460.76 × 72,590.36
  4. Step 4: Simplify right side
    198,938.48x = 21,665,374,014.27
  5. Step 5: Solve for x
    x = 21,665,374,014.27/198,938.48
  6. Step 6: Final answer
    x = 108,904.89

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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.