Home / 255,723.35-383,571.18-78,230.34

Finding the Fourth Proportional to 255,723.35, 383,571.18 and 78,230.34

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Solution

The fourth proportional to 255,723.35, 383,571.18 and 78,230.34 is: 117,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,723.35 : 383,571.18 = 78,230.34 : x
  2. Step 2: Convert to fraction form
    255,723.35/383,571.18 = 78,230.34/x
  3. Step 3: Cross multiply
    255,723.35x = 383,571.18 × 78,230.34
  4. Step 4: Simplify right side
    255,723.35x = 30,006,903,825.60
  5. Step 5: Solve for x
    x = 30,006,903,825.60/255,723.35
  6. Step 6: Final answer
    x = 117,341.28

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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.