Home / 285,739.88-428,522.30-197,560.04

Finding the Fourth Proportional to 285,739.88, 428,522.30 and 197,560.04

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Solution

The fourth proportional to 285,739.88, 428,522.30 and 197,560.04 is: 296,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,739.88 : 428,522.30 = 197,560.04 : x
  2. Step 2: Convert to fraction form
    285,739.88/428,522.30 = 197,560.04/x
  3. Step 3: Cross multiply
    285,739.88x = 428,522.30 × 197,560.04
  4. Step 4: Simplify right side
    285,739.88x = 84,658,882,728.89
  5. Step 5: Solve for x
    x = 84,658,882,728.89/285,739.88
  6. Step 6: Final answer
    x = 296,279.55

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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.