Home / 198,898.43-298,292.04-78,901.38

Finding the Fourth Proportional to 198,898.43, 298,292.04 and 78,901.38

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Solution

The fourth proportional to 198,898.43, 298,292.04 and 78,901.38 is: 118,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,898.43 : 298,292.04 = 78,901.38 : x
  2. Step 2: Convert to fraction form
    198,898.43/298,292.04 = 78,901.38/x
  3. Step 3: Cross multiply
    198,898.43x = 298,292.04 × 78,901.38
  4. Step 4: Simplify right side
    198,898.43x = 23,535,653,599.02
  5. Step 5: Solve for x
    x = 23,535,653,599.02/198,898.43
  6. Step 6: Final answer
    x = 118,330.01

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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.