Home / 281,831.64-388,927.68-154,508.13

Finding the Fourth Proportional to 281,831.64, 388,927.68 and 154,508.13

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Solution

The fourth proportional to 281,831.64, 388,927.68 and 154,508.13 is: 213,221.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,831.64 : 388,927.68 = 154,508.13 : x
  2. Step 2: Convert to fraction form
    281,831.64/388,927.68 = 154,508.13/x
  3. Step 3: Cross multiply
    281,831.64x = 388,927.68 × 154,508.13
  4. Step 4: Simplify right side
    281,831.64x = 60,092,488,542.04
  5. Step 5: Solve for x
    x = 60,092,488,542.04/281,831.64
  6. Step 6: Final answer
    x = 213,221.23

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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.