Home / 275,795.20-380,584.56-153,281.88

Finding the Fourth Proportional to 275,795.20, 380,584.56 and 153,281.88

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Solution

The fourth proportional to 275,795.20, 380,584.56 and 153,281.88 is: 211,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,795.20 : 380,584.56 = 153,281.88 : x
  2. Step 2: Convert to fraction form
    275,795.20/380,584.56 = 153,281.88/x
  3. Step 3: Cross multiply
    275,795.20x = 380,584.56 × 153,281.88
  4. Step 4: Simplify right side
    275,795.20x = 58,336,716,855.77
  5. Step 5: Solve for x
    x = 58,336,716,855.77/275,795.20
  6. Step 6: Final answer
    x = 211,521.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.