Home / 281,082.65-387,831.89-172,209.98

Finding the Fourth Proportional to 281,082.65, 387,831.89 and 172,209.98

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Solution

The fourth proportional to 281,082.65, 387,831.89 and 172,209.98 is: 237,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,082.65 : 387,831.89 = 172,209.98 : x
  2. Step 2: Convert to fraction form
    281,082.65/387,831.89 = 172,209.98/x
  3. Step 3: Cross multiply
    281,082.65x = 387,831.89 × 172,209.98
  4. Step 4: Simplify right side
    281,082.65x = 66,788,519,220.05
  5. Step 5: Solve for x
    x = 66,788,519,220.05/281,082.65
  6. Step 6: Final answer
    x = 237,611.68

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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.