Home / 281,721.58-388,774.92-160,900.72

Finding the Fourth Proportional to 281,721.58, 388,774.92 and 160,900.72

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Solution

The fourth proportional to 281,721.58, 388,774.92 and 160,900.72 is: 222,042.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,721.58 : 388,774.92 = 160,900.72 : x
  2. Step 2: Convert to fraction form
    281,721.58/388,774.92 = 160,900.72/x
  3. Step 3: Cross multiply
    281,721.58x = 388,774.92 × 160,900.72
  4. Step 4: Simplify right side
    281,721.58x = 62,554,164,545.94
  5. Step 5: Solve for x
    x = 62,554,164,545.94/281,721.58
  6. Step 6: Final answer
    x = 222,042.50

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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.