Home / 255,723.14-383,570.79-78,230.15

Finding the Fourth Proportional to 255,723.14, 383,570.79 and 78,230.15

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Solution

The fourth proportional to 255,723.14, 383,570.79 and 78,230.15 is: 117,340.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,723.14 : 383,570.79 = 78,230.15 : x
  2. Step 2: Convert to fraction form
    255,723.14/383,570.79 = 78,230.15/x
  3. Step 3: Cross multiply
    255,723.14x = 383,570.79 × 78,230.15
  4. Step 4: Simplify right side
    255,723.14x = 30,006,799,282.82
  5. Step 5: Solve for x
    x = 30,006,799,282.82/255,723.14
  6. Step 6: Final answer
    x = 117,340.96

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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.