Home / 198,420.14-297,609.92-54,338.77

Finding the Fourth Proportional to 198,420.14, 297,609.92 and 54,338.77

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Solution

The fourth proportional to 198,420.14, 297,609.92 and 54,338.77 is: 81,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,420.14 : 297,609.92 = 54,338.77 : x
  2. Step 2: Convert to fraction form
    198,420.14/297,609.92 = 54,338.77/x
  3. Step 3: Cross multiply
    198,420.14x = 297,609.92 × 54,338.77
  4. Step 4: Simplify right side
    198,420.14x = 16,171,756,384.42
  5. Step 5: Solve for x
    x = 16,171,756,384.42/198,420.14
  6. Step 6: Final answer
    x = 81,502.60

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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.