Home / 212,868.82-319,452.85-192,518.28

Finding the Fourth Proportional to 212,868.82, 319,452.85 and 192,518.28

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Solution

The fourth proportional to 212,868.82, 319,452.85 and 192,518.28 is: 288,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,868.82 : 319,452.85 = 192,518.28 : x
  2. Step 2: Convert to fraction form
    212,868.82/319,452.85 = 192,518.28/x
  3. Step 3: Cross multiply
    212,868.82x = 319,452.85 × 192,518.28
  4. Step 4: Simplify right side
    212,868.82x = 61,500,513,223.10
  5. Step 5: Solve for x
    x = 61,500,513,223.10/212,868.82
  6. Step 6: Final answer
    x = 288,912.74

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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.