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Finding the Fourth Proportional to 255,515.60, 383,358.75 and 113,341.29

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Solution

The fourth proportional to 255,515.60, 383,358.75 and 113,341.29 is: 170,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,515.60 : 383,358.75 = 113,341.29 : x
  2. Step 2: Convert to fraction form
    255,515.60/383,358.75 = 113,341.29/x
  3. Step 3: Cross multiply
    255,515.60x = 383,358.75 × 113,341.29
  4. Step 4: Simplify right side
    255,515.60x = 43,450,375,257.79
  5. Step 5: Solve for x
    x = 43,450,375,257.79/255,515.60
  6. Step 6: Final answer
    x = 170,049.80

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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.