Home / 275,536.28-380,239.88-154,677.80

Finding the Fourth Proportional to 275,536.28, 380,239.88 and 154,677.80

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Solution

The fourth proportional to 275,536.28, 380,239.88 and 154,677.80 is: 213,455.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,536.28 : 380,239.88 = 154,677.80 : x
  2. Step 2: Convert to fraction form
    275,536.28/380,239.88 = 154,677.80/x
  3. Step 3: Cross multiply
    275,536.28x = 380,239.88 × 154,677.80
  4. Step 4: Simplify right side
    275,536.28x = 58,814,668,287.87
  5. Step 5: Solve for x
    x = 58,814,668,287.87/275,536.28
  6. Step 6: Final answer
    x = 213,455.26

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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.