Home / 347,257.60-520,789.20-110,672.80

Finding the Fourth Proportional to 347,257.60, 520,789.20 and 110,672.80

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Solution

The fourth proportional to 347,257.60, 520,789.20 and 110,672.80 is: 165,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,257.60 : 520,789.20 = 110,672.80 : x
  2. Step 2: Convert to fraction form
    347,257.60/520,789.20 = 110,672.80/x
  3. Step 3: Cross multiply
    347,257.60x = 520,789.20 × 110,672.80
  4. Step 4: Simplify right side
    347,257.60x = 57,637,198,973.76
  5. Step 5: Solve for x
    x = 57,637,198,973.76/347,257.60
  6. Step 6: Final answer
    x = 165,978.22

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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.