Home / 421,376.34-632,082.97-121,887.20

Finding the Fourth Proportional to 421,376.34, 632,082.97 and 121,887.20

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Solution

The fourth proportional to 421,376.34, 632,082.97 and 121,887.20 is: 182,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,376.34 : 632,082.97 = 121,887.20 : x
  2. Step 2: Convert to fraction form
    421,376.34/632,082.97 = 121,887.20/x
  3. Step 3: Cross multiply
    421,376.34x = 632,082.97 × 121,887.20
  4. Step 4: Simplify right side
    421,376.34x = 77,042,823,380.98
  5. Step 5: Solve for x
    x = 77,042,823,380.98/421,376.34
  6. Step 6: Final answer
    x = 182,836.14

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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.