Home / 203,276.47-280,517.85-112,632.11

Finding the Fourth Proportional to 203,276.47, 280,517.85 and 112,632.11

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Solution

The fourth proportional to 203,276.47, 280,517.85 and 112,632.11 is: 155,430.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,276.47 : 280,517.85 = 112,632.11 : x
  2. Step 2: Convert to fraction form
    203,276.47/280,517.85 = 112,632.11/x
  3. Step 3: Cross multiply
    203,276.47x = 280,517.85 × 112,632.11
  4. Step 4: Simplify right side
    203,276.47x = 31,595,317,338.16
  5. Step 5: Solve for x
    x = 31,595,317,338.16/203,276.47
  6. Step 6: Final answer
    x = 155,430.27

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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.