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Finding the Fourth Proportional to 275,859.20, 413,750.40 and 88,889.60

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Solution

The fourth proportional to 275,859.20, 413,750.40 and 88,889.60 is: 133,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,859.20 : 413,750.40 = 88,889.60 : x
  2. Step 2: Convert to fraction form
    275,859.20/413,750.40 = 88,889.60/x
  3. Step 3: Cross multiply
    275,859.20x = 413,750.40 × 88,889.60
  4. Step 4: Simplify right side
    275,859.20x = 36,778,107,555.84
  5. Step 5: Solve for x
    x = 36,778,107,555.84/275,859.20
  6. Step 6: Final answer
    x = 133,322.03

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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.