Home / 346,721.60-520,255.20-197,076.80

Finding the Fourth Proportional to 346,721.60, 520,255.20 and 197,076.80

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Solution

The fourth proportional to 346,721.60, 520,255.20 and 197,076.80 is: 295,713.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,721.60 : 520,255.20 = 197,076.80 : x
  2. Step 2: Convert to fraction form
    346,721.60/520,255.20 = 197,076.80/x
  3. Step 3: Cross multiply
    346,721.60x = 520,255.20 × 197,076.80
  4. Step 4: Simplify right side
    346,721.60x = 102,530,229,999.36
  5. Step 5: Solve for x
    x = 102,530,229,999.36/346,721.60
  6. Step 6: Final answer
    x = 295,713.42

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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.