Home / 217,550.07-300,218.81-122,065.65

Finding the Fourth Proportional to 217,550.07, 300,218.81 and 122,065.65

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Solution

The fourth proportional to 217,550.07, 300,218.81 and 122,065.65 is: 168,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,550.07 : 300,218.81 = 122,065.65 : x
  2. Step 2: Convert to fraction form
    217,550.07/300,218.81 = 122,065.65/x
  3. Step 3: Cross multiply
    217,550.07x = 300,218.81 × 122,065.65
  4. Step 4: Simplify right side
    217,550.07x = 36,646,403,574.55
  5. Step 5: Solve for x
    x = 36,646,403,574.55/217,550.07
  6. Step 6: Final answer
    x = 168,450.43

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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.