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Finding the Fourth Proportional to 188,210.39, 282,066.39 and 138,055.65

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Solution

The fourth proportional to 188,210.39, 282,066.39 and 138,055.65 is: 206,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,210.39 : 282,066.39 = 138,055.65 : x
  2. Step 2: Convert to fraction form
    188,210.39/282,066.39 = 138,055.65/x
  3. Step 3: Cross multiply
    188,210.39x = 282,066.39 × 138,055.65
  4. Step 4: Simplify right side
    188,210.39x = 38,940,858,814.60
  5. Step 5: Solve for x
    x = 38,940,858,814.60/188,210.39
  6. Step 6: Final answer
    x = 206,900.69

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1.5x scale

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.