Home / 347,242.20-520,085.70-268,099.80

Finding the Fourth Proportional to 347,242.20, 520,085.70 and 268,099.80

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Solution

The fourth proportional to 347,242.20, 520,085.70 and 268,099.80 is: 401,549.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,242.20 : 520,085.70 = 268,099.80 : x
  2. Step 2: Convert to fraction form
    347,242.20/520,085.70 = 268,099.80/x
  3. Step 3: Cross multiply
    347,242.20x = 520,085.70 × 268,099.80
  4. Step 4: Simplify right side
    347,242.20x = 139,434,872,152.86
  5. Step 5: Solve for x
    x = 139,434,872,152.86/347,242.20
  6. Step 6: Final answer
    x = 401,549.33

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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.