Home / 281,824.20-388,920.60-160,981.56

Finding the Fourth Proportional to 281,824.20, 388,920.60 and 160,981.56

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Solution

The fourth proportional to 281,824.20, 388,920.60 and 160,981.56 is: 222,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,824.20 : 388,920.60 = 160,981.56 : x
  2. Step 2: Convert to fraction form
    281,824.20/388,920.60 = 160,981.56/x
  3. Step 3: Cross multiply
    281,824.20x = 388,920.60 × 160,981.56
  4. Step 4: Simplify right side
    281,824.20x = 62,609,044,904.14
  5. Step 5: Solve for x
    x = 62,609,044,904.14/281,824.20
  6. Step 6: Final answer
    x = 222,156.38

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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.