Home / 281,835.36-388,938.24-154,503.36

Finding the Fourth Proportional to 281,835.36, 388,938.24 and 154,503.36

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Solution

The fourth proportional to 281,835.36, 388,938.24 and 154,503.36 is: 213,217.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835.36 : 388,938.24 = 154,503.36 : x
  2. Step 2: Convert to fraction form
    281,835.36/388,938.24 = 154,503.36/x
  3. Step 3: Cross multiply
    281,835.36x = 388,938.24 × 154,503.36
  4. Step 4: Simplify right side
    281,835.36x = 60,092,264,912.49
  5. Step 5: Solve for x
    x = 60,092,264,912.49/281,835.36
  6. Step 6: Final answer
    x = 213,217.62

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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.