Home / 255,724.04-383,628.96-78,189.44

Finding the Fourth Proportional to 255,724.04, 383,628.96 and 78,189.44

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Solution

The fourth proportional to 255,724.04, 383,628.96 and 78,189.44 is: 117,297.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,724.04 : 383,628.96 = 78,189.44 : x
  2. Step 2: Convert to fraction form
    255,724.04/383,628.96 = 78,189.44/x
  3. Step 3: Cross multiply
    255,724.04x = 383,628.96 × 78,189.44
  4. Step 4: Simplify right side
    255,724.04x = 29,995,733,550.18
  5. Step 5: Solve for x
    x = 29,995,733,550.18/255,724.04
  6. Step 6: Final answer
    x = 117,297.28

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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.