Home / 281,376.05-388,283.64-154,027.04

Finding the Fourth Proportional to 281,376.05, 388,283.64 and 154,027.04

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Solution

The fourth proportional to 281,376.05, 388,283.64 and 154,027.04 is: 212,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,376.05 : 388,283.64 = 154,027.04 : x
  2. Step 2: Convert to fraction form
    281,376.05/388,283.64 = 154,027.04/x
  3. Step 3: Cross multiply
    281,376.05x = 388,283.64 × 154,027.04
  4. Step 4: Simplify right side
    281,376.05x = 59,806,179,749.63
  5. Step 5: Solve for x
    x = 59,806,179,749.63/281,376.05
  6. Step 6: Final answer
    x = 212,548.93

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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.