Home / 281,063.13-387,831.02-172,216.14

Finding the Fourth Proportional to 281,063.13, 387,831.02 and 172,216.14

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Solution

The fourth proportional to 281,063.13, 387,831.02 and 172,216.14 is: 237,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,063.13 : 387,831.02 = 172,216.14 : x
  2. Step 2: Convert to fraction form
    281,063.13/387,831.02 = 172,216.14/x
  3. Step 3: Cross multiply
    281,063.13x = 387,831.02 × 172,216.14
  4. Step 4: Simplify right side
    281,063.13x = 66,790,760,375.58
  5. Step 5: Solve for x
    x = 66,790,760,375.58/281,063.13
  6. Step 6: Final answer
    x = 237,636.15

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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.