Home / 281,787.52-388,868.48-154,462.72

Finding the Fourth Proportional to 281,787.52, 388,868.48 and 154,462.72

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Solution

The fourth proportional to 281,787.52, 388,868.48 and 154,462.72 is: 213,159.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,787.52 : 388,868.48 = 154,462.72 : x
  2. Step 2: Convert to fraction form
    281,787.52/388,868.48 = 154,462.72/x
  3. Step 3: Cross multiply
    281,787.52x = 388,868.48 × 154,462.72
  4. Step 4: Simplify right side
    281,787.52x = 60,065,683,143.07
  5. Step 5: Solve for x
    x = 60,065,683,143.07/281,787.52
  6. Step 6: Final answer
    x = 213,159.49

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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.