Home / 209,318.97-288,942.34-148,383.65

Finding the Fourth Proportional to 209,318.97, 288,942.34 and 148,383.65

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Solution

The fourth proportional to 209,318.97, 288,942.34 and 148,383.65 is: 204,827.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,318.97 : 288,942.34 = 148,383.65 : x
  2. Step 2: Convert to fraction form
    209,318.97/288,942.34 = 148,383.65/x
  3. Step 3: Cross multiply
    209,318.97x = 288,942.34 × 148,383.65
  4. Step 4: Simplify right side
    209,318.97x = 42,874,319,048.74
  5. Step 5: Solve for x
    x = 42,874,319,048.74/209,318.97
  6. Step 6: Final answer
    x = 204,827.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.