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Finding the Fourth Proportional to 258,938.59, 388,252.35 and 101,241.31

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Solution

The fourth proportional to 258,938.59, 388,252.35 and 101,241.31 is: 151,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,938.59 : 388,252.35 = 101,241.31 : x
  2. Step 2: Convert to fraction form
    258,938.59/388,252.35 = 101,241.31/x
  3. Step 3: Cross multiply
    258,938.59x = 388,252.35 × 101,241.31
  4. Step 4: Simplify right side
    258,938.59x = 39,307,176,524.58
  5. Step 5: Solve for x
    x = 39,307,176,524.58/258,938.59
  6. Step 6: Final answer
    x = 151,801.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.