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Finding the Fourth Proportional to 188,114.41, 282,005.46 and 143,938.36

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Solution

The fourth proportional to 188,114.41, 282,005.46 and 143,938.36 is: 215,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,114.41 : 282,005.46 = 143,938.36 : x
  2. Step 2: Convert to fraction form
    188,114.41/282,005.46 = 143,938.36/x
  3. Step 3: Cross multiply
    188,114.41x = 282,005.46 × 143,938.36
  4. Step 4: Simplify right side
    188,114.41x = 40,591,403,423.45
  5. Step 5: Solve for x
    x = 40,591,403,423.45/188,114.41
  6. Step 6: Final answer
    x = 215,780.40

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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.