Home / 281,531.16-388,519.26-160,670.04

Finding the Fourth Proportional to 281,531.16, 388,519.26 and 160,670.04

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Solution

The fourth proportional to 281,531.16, 388,519.26 and 160,670.04 is: 221,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,531.16 : 388,519.26 = 160,670.04 : x
  2. Step 2: Convert to fraction form
    281,531.16/388,519.26 = 160,670.04/x
  3. Step 3: Cross multiply
    281,531.16x = 388,519.26 × 160,670.04
  4. Step 4: Simplify right side
    281,531.16x = 62,423,405,044.97
  5. Step 5: Solve for x
    x = 62,423,405,044.97/281,531.16
  6. Step 6: Final answer
    x = 221,728.23

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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.