Home / 275,555.27-380,240.02-154,668.85

Finding the Fourth Proportional to 275,555.27, 380,240.02 and 154,668.85

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Solution

The fourth proportional to 275,555.27, 380,240.02 and 154,668.85 is: 213,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,555.27 : 380,240.02 = 154,668.85 : x
  2. Step 2: Convert to fraction form
    275,555.27/380,240.02 = 154,668.85/x
  3. Step 3: Cross multiply
    275,555.27x = 380,240.02 × 154,668.85
  4. Step 4: Simplify right side
    275,555.27x = 58,811,285,280.10
  5. Step 5: Solve for x
    x = 58,811,285,280.10/275,555.27
  6. Step 6: Final answer
    x = 213,428.27

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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.