Home / 210,722.60-315,306.30-192,060.20

Finding the Fourth Proportional to 210,722.60, 315,306.30 and 192,060.20

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Solution

The fourth proportional to 210,722.60, 315,306.30 and 192,060.20 is: 287,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,722.60 : 315,306.30 = 192,060.20 : x
  2. Step 2: Convert to fraction form
    210,722.60/315,306.30 = 192,060.20/x
  3. Step 3: Cross multiply
    210,722.60x = 315,306.30 × 192,060.20
  4. Step 4: Simplify right side
    210,722.60x = 60,557,791,039.26
  5. Step 5: Solve for x
    x = 60,557,791,039.26/210,722.60
  6. Step 6: Final answer
    x = 287,381.57

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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.