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Finding the Fourth Proportional to 188,655.75, 282,915.11 and 103,329.95

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Solution

The fourth proportional to 188,655.75, 282,915.11 and 103,329.95 is: 154,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,655.75 : 282,915.11 = 103,329.95 : x
  2. Step 2: Convert to fraction form
    188,655.75/282,915.11 = 103,329.95/x
  3. Step 3: Cross multiply
    188,655.75x = 282,915.11 × 103,329.95
  4. Step 4: Simplify right side
    188,655.75x = 29,233,603,014.29
  5. Step 5: Solve for x
    x = 29,233,603,014.29/188,655.75
  6. Step 6: Final answer
    x = 154,957.39

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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.