Home / 198,945.30-298,417.98-190,306.68

Finding the Fourth Proportional to 198,945.30, 298,417.98 and 190,306.68

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Solution

The fourth proportional to 198,945.30, 298,417.98 and 190,306.68 is: 285,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,945.30 : 298,417.98 = 190,306.68 : x
  2. Step 2: Convert to fraction form
    198,945.30/298,417.98 = 190,306.68/x
  3. Step 3: Cross multiply
    198,945.30x = 298,417.98 × 190,306.68
  4. Step 4: Simplify right side
    198,945.30x = 56,790,935,026.11
  5. Step 5: Solve for x
    x = 56,790,935,026.11/198,945.30
  6. Step 6: Final answer
    x = 285,460.05

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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.