Home / 258,900.39-388,220.71-150,864.75

Finding the Fourth Proportional to 258,900.39, 388,220.71 and 150,864.75

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Solution

The fourth proportional to 258,900.39, 388,220.71 and 150,864.75 is: 226,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,900.39 : 388,220.71 = 150,864.75 : x
  2. Step 2: Convert to fraction form
    258,900.39/388,220.71 = 150,864.75/x
  3. Step 3: Cross multiply
    258,900.39x = 388,220.71 × 150,864.75
  4. Step 4: Simplify right side
    258,900.39x = 58,568,819,981.81
  5. Step 5: Solve for x
    x = 58,568,819,981.81/258,900.39
  6. Step 6: Final answer
    x = 226,221.44

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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.