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Finding the Fourth Proportional to 281,185.52, 388,036.44 and 153,862.04

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Solution

The fourth proportional to 281,185.52, 388,036.44 and 153,862.04 is: 212,329.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,185.52 : 388,036.44 = 153,862.04 : x
  2. Step 2: Convert to fraction form
    281,185.52/388,036.44 = 153,862.04/x
  3. Step 3: Cross multiply
    281,185.52x = 388,036.44 × 153,862.04
  4. Step 4: Simplify right side
    281,185.52x = 59,704,078,252.74
  5. Step 5: Solve for x
    x = 59,704,078,252.74/281,185.52
  6. Step 6: Final answer
    x = 212,329.85

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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.