Home / 347,823.25-479,887.13-194,840.78

Finding the Fourth Proportional to 347,823.25, 479,887.13 and 194,840.78

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Solution

The fourth proportional to 347,823.25, 479,887.13 and 194,840.78 is: 268,819.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,823.25 : 479,887.13 = 194,840.78 : x
  2. Step 2: Convert to fraction form
    347,823.25/479,887.13 = 194,840.78/x
  3. Step 3: Cross multiply
    347,823.25x = 479,887.13 × 194,840.78
  4. Step 4: Simplify right side
    347,823.25x = 93,501,580,808.83
  5. Step 5: Solve for x
    x = 93,501,580,808.83/347,823.25
  6. Step 6: Final answer
    x = 268,819.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.