Home / 347,768.20-520,874.70-268,625.80

Finding the Fourth Proportional to 347,768.20, 520,874.70 and 268,625.80

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Solution

The fourth proportional to 347,768.20, 520,874.70 and 268,625.80 is: 402,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,768.20 : 520,874.70 = 268,625.80 : x
  2. Step 2: Convert to fraction form
    347,768.20/520,874.70 = 268,625.80/x
  3. Step 3: Cross multiply
    347,768.20x = 520,874.70 × 268,625.80
  4. Step 4: Simplify right side
    347,768.20x = 139,920,382,987.26
  5. Step 5: Solve for x
    x = 139,920,382,987.26/347,768.20
  6. Step 6: Final answer
    x = 402,338.06

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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.