Home / 281,768.14-388,837.74-154,443.46

Finding the Fourth Proportional to 281,768.14, 388,837.74 and 154,443.46

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Solution

The fourth proportional to 281,768.14, 388,837.74 and 154,443.46 is: 213,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,768.14 : 388,837.74 = 154,443.46 : x
  2. Step 2: Convert to fraction form
    281,768.14/388,837.74 = 154,443.46/x
  3. Step 3: Cross multiply
    281,768.14x = 388,837.74 × 154,443.46
  4. Step 4: Simplify right side
    281,768.14x = 60,053,445,944.18
  5. Step 5: Solve for x
    x = 60,053,445,944.18/281,768.14
  6. Step 6: Final answer
    x = 213,130.72

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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.