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Finding the Fourth Proportional to 188,658.25, 282,918.85 and 103,332.45

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Solution

The fourth proportional to 188,658.25, 282,918.85 and 103,332.45 is: 154,961.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,658.25 : 282,918.85 = 103,332.45 : x
  2. Step 2: Convert to fraction form
    188,658.25/282,918.85 = 103,332.45/x
  3. Step 3: Cross multiply
    188,658.25x = 282,918.85 × 103,332.45
  4. Step 4: Simplify right side
    188,658.25x = 29,234,697,921.68
  5. Step 5: Solve for x
    x = 29,234,697,921.68/188,658.25
  6. Step 6: Final answer
    x = 154,961.14

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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.