Home / 275,721.63-380,531.52-154,862.91

Finding the Fourth Proportional to 275,721.63, 380,531.52 and 154,862.91

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Solution

The fourth proportional to 275,721.63, 380,531.52 and 154,862.91 is: 213,730.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,721.63 : 380,531.52 = 154,862.91 : x
  2. Step 2: Convert to fraction form
    275,721.63/380,531.52 = 154,862.91/x
  3. Step 3: Cross multiply
    275,721.63x = 380,531.52 × 154,862.91
  4. Step 4: Simplify right side
    275,721.63x = 58,930,218,533.92
  5. Step 5: Solve for x
    x = 58,930,218,533.92/275,721.63
  6. Step 6: Final answer
    x = 213,730.85

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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.