Home / 205,027.20-307,540.80-57,283.20

Finding the Fourth Proportional to 205,027.20, 307,540.80 and 57,283.20

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Solution

The fourth proportional to 205,027.20, 307,540.80 and 57,283.20 is: 85,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,027.20 : 307,540.80 = 57,283.20 : x
  2. Step 2: Convert to fraction form
    205,027.20/307,540.80 = 57,283.20/x
  3. Step 3: Cross multiply
    205,027.20x = 307,540.80 × 57,283.20
  4. Step 4: Simplify right side
    205,027.20x = 17,616,921,154.56
  5. Step 5: Solve for x
    x = 17,616,921,154.56/205,027.20
  6. Step 6: Final answer
    x = 85,924.80

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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.