Home / 198,219.84-297,332.19-57,981.30

Finding the Fourth Proportional to 198,219.84, 297,332.19 and 57,981.30

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Solution

The fourth proportional to 198,219.84, 297,332.19 and 57,981.30 is: 86,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,219.84 : 297,332.19 = 57,981.30 : x
  2. Step 2: Convert to fraction form
    198,219.84/297,332.19 = 57,981.30/x
  3. Step 3: Cross multiply
    198,219.84x = 297,332.19 × 57,981.30
  4. Step 4: Simplify right side
    198,219.84x = 17,239,706,908.05
  5. Step 5: Solve for x
    x = 17,239,706,908.05/198,219.84
  6. Step 6: Final answer
    x = 86,972.66

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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.