Home / 209,217.47-313,708.08-191,364.38

Finding the Fourth Proportional to 209,217.47, 313,708.08 and 191,364.38

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Solution

The fourth proportional to 209,217.47, 313,708.08 and 191,364.38 is: 286,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,217.47 : 313,708.08 = 191,364.38 : x
  2. Step 2: Convert to fraction form
    209,217.47/313,708.08 = 191,364.38/x
  3. Step 3: Cross multiply
    209,217.47x = 313,708.08 × 191,364.38
  4. Step 4: Simplify right side
    209,217.47x = 60,032,550,661.65
  5. Step 5: Solve for x
    x = 60,032,550,661.65/209,217.47
  6. Step 6: Final answer
    x = 286,938.52

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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.