Home / 485,932.50-729,015.66-153,508.50

Finding the Fourth Proportional to 485,932.50, 729,015.66 and 153,508.50

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Solution

The fourth proportional to 485,932.50, 729,015.66 and 153,508.50 is: 230,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,932.50 : 729,015.66 = 153,508.50 : x
  2. Step 2: Convert to fraction form
    485,932.50/729,015.66 = 153,508.50/x
  3. Step 3: Cross multiply
    485,932.50x = 729,015.66 × 153,508.50
  4. Step 4: Simplify right side
    485,932.50x = 111,910,100,443.11
  5. Step 5: Solve for x
    x = 111,910,100,443.11/485,932.50
  6. Step 6: Final answer
    x = 230,299.68

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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.