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Finding the Fourth Proportional to 255,404.21, 383,104.22 and 95,520.47

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Solution

The fourth proportional to 255,404.21, 383,104.22 and 95,520.47 is: 143,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,404.21 : 383,104.22 = 95,520.47 : x
  2. Step 2: Convert to fraction form
    255,404.21/383,104.22 = 95,520.47/x
  3. Step 3: Cross multiply
    255,404.21x = 383,104.22 × 95,520.47
  4. Step 4: Simplify right side
    255,404.21x = 36,594,292,760.26
  5. Step 5: Solve for x
    x = 36,594,292,760.26/255,404.21
  6. Step 6: Final answer
    x = 143,279.91

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1.5x scale

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.