Home / 281,831.54-388,925.16-154,506.84

Finding the Fourth Proportional to 281,831.54, 388,925.16 and 154,506.84

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Solution

The fourth proportional to 281,831.54, 388,925.16 and 154,506.84 is: 213,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,831.54 : 388,925.16 = 154,506.84 : x
  2. Step 2: Convert to fraction form
    281,831.54/388,925.16 = 154,506.84/x
  3. Step 3: Cross multiply
    281,831.54x = 388,925.16 × 154,506.84
  4. Step 4: Simplify right side
    281,831.54x = 60,091,597,468.09
  5. Step 5: Solve for x
    x = 60,091,597,468.09/281,831.54
  6. Step 6: Final answer
    x = 213,218.14

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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.