Home / 209,288.78-288,810.55-113,795.55

Finding the Fourth Proportional to 209,288.78, 288,810.55 and 113,795.55

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Solution

The fourth proportional to 209,288.78, 288,810.55 and 113,795.55 is: 157,033.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,288.78 : 288,810.55 = 113,795.55 : x
  2. Step 2: Convert to fraction form
    209,288.78/288,810.55 = 113,795.55/x
  3. Step 3: Cross multiply
    209,288.78x = 288,810.55 × 113,795.55
  4. Step 4: Simplify right side
    209,288.78x = 32,865,355,383.05
  5. Step 5: Solve for x
    x = 32,865,355,383.05/209,288.78
  6. Step 6: Final answer
    x = 157,033.53

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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.