Home / 213,251.20-318,494.09-193,220.64

Finding the Fourth Proportional to 213,251.20, 318,494.09 and 193,220.64

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Solution

The fourth proportional to 213,251.20, 318,494.09 and 193,220.64 is: 288,578.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,251.20 : 318,494.09 = 193,220.64 : x
  2. Step 2: Convert to fraction form
    213,251.20/318,494.09 = 193,220.64/x
  3. Step 3: Cross multiply
    213,251.20x = 318,494.09 × 193,220.64
  4. Step 4: Simplify right side
    213,251.20x = 61,539,632,389.07
  5. Step 5: Solve for x
    x = 61,539,632,389.07/213,251.20
  6. Step 6: Final answer
    x = 288,578.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.