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Finding the Fourth Proportional to 275,785.90, 413,803.60 and 140,780.22

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Solution

The fourth proportional to 275,785.90, 413,803.60 and 140,780.22 is: 211,234.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,785.90 : 413,803.60 = 140,780.22 : x
  2. Step 2: Convert to fraction form
    275,785.90/413,803.60 = 140,780.22/x
  3. Step 3: Cross multiply
    275,785.90x = 413,803.60 × 140,780.22
  4. Step 4: Simplify right side
    275,785.90x = 58,255,361,844.79
  5. Step 5: Solve for x
    x = 58,255,361,844.79/275,785.90
  6. Step 6: Final answer
    x = 211,234.01

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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.