Home / 255,727.98-383,607.33-78,236.52

Finding the Fourth Proportional to 255,727.98, 383,607.33 and 78,236.52

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Solution

The fourth proportional to 255,727.98, 383,607.33 and 78,236.52 is: 117,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,727.98 : 383,607.33 = 78,236.52 : x
  2. Step 2: Convert to fraction form
    255,727.98/383,607.33 = 78,236.52/x
  3. Step 3: Cross multiply
    255,727.98x = 383,607.33 × 78,236.52
  4. Step 4: Simplify right side
    255,727.98x = 30,012,102,545.69
  5. Step 5: Solve for x
    x = 30,012,102,545.69/255,727.98
  6. Step 6: Final answer
    x = 117,359.48

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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.