Home / 275,575.17-380,283.99-154,721.55

Finding the Fourth Proportional to 275,575.17, 380,283.99 and 154,721.55

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Solution

The fourth proportional to 275,575.17, 380,283.99 and 154,721.55 is: 213,510.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,575.17 : 380,283.99 = 154,721.55 : x
  2. Step 2: Convert to fraction form
    275,575.17/380,283.99 = 154,721.55/x
  3. Step 3: Cross multiply
    275,575.17x = 380,283.99 × 154,721.55
  4. Step 4: Simplify right side
    275,575.17x = 58,838,128,372.98
  5. Step 5: Solve for x
    x = 58,838,128,372.98/275,575.17
  6. Step 6: Final answer
    x = 213,510.27

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1.5x scale

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.