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Finding the Fourth Proportional to 147,989.80, 222,000.90 and 143,324.20

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Solution

The fourth proportional to 147,989.80, 222,000.90 and 143,324.20 is: 215,001.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,989.80 : 222,000.90 = 143,324.20 : x
  2. Step 2: Convert to fraction form
    147,989.80/222,000.90 = 143,324.20/x
  3. Step 3: Cross multiply
    147,989.80x = 222,000.90 × 143,324.20
  4. Step 4: Simplify right side
    147,989.80x = 31,818,101,391.78
  5. Step 5: Solve for x
    x = 31,818,101,391.78/147,989.80
  6. Step 6: Final answer
    x = 215,001.99

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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.