Home / 386,144.20-579,734.70-246,521.80

Finding the Fourth Proportional to 386,144.20, 579,734.70 and 246,521.80

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Solution

The fourth proportional to 386,144.20, 579,734.70 and 246,521.80 is: 370,113.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,144.20 : 579,734.70 = 246,521.80 : x
  2. Step 2: Convert to fraction form
    386,144.20/579,734.70 = 246,521.80/x
  3. Step 3: Cross multiply
    386,144.20x = 579,734.70 × 246,521.80
  4. Step 4: Simplify right side
    386,144.20x = 142,917,241,766.46
  5. Step 5: Solve for x
    x = 142,917,241,766.46/386,144.20
  6. Step 6: Final answer
    x = 370,113.66

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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.