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Finding the Fourth Proportional to 198,262.89, 297,394.74 and 139,362.12

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Solution

The fourth proportional to 198,262.89, 297,394.74 and 139,362.12 is: 209,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,262.89 : 297,394.74 = 139,362.12 : x
  2. Step 2: Convert to fraction form
    198,262.89/297,394.74 = 139,362.12/x
  3. Step 3: Cross multiply
    198,262.89x = 297,394.74 × 139,362.12
  4. Step 4: Simplify right side
    198,262.89x = 41,445,561,443.25
  5. Step 5: Solve for x
    x = 41,445,561,443.25/198,262.89
  6. Step 6: Final answer
    x = 209,043.46

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1.5x scale

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.