Home / 312,868.21-431,766.63-176,922.49

Finding the Fourth Proportional to 312,868.21, 431,766.63 and 176,922.49

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Solution

The fourth proportional to 312,868.21, 431,766.63 and 176,922.49 is: 244,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,868.21 : 431,766.63 = 176,922.49 : x
  2. Step 2: Convert to fraction form
    312,868.21/431,766.63 = 176,922.49/x
  3. Step 3: Cross multiply
    312,868.21x = 431,766.63 × 176,922.49
  4. Step 4: Simplify right side
    312,868.21x = 76,389,227,915.62
  5. Step 5: Solve for x
    x = 76,389,227,915.62/312,868.21
  6. Step 6: Final answer
    x = 244,157.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.