Home / 203,289.45-280,535.25-112,644.62

Finding the Fourth Proportional to 203,289.45, 280,535.25 and 112,644.62

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Solution

The fourth proportional to 203,289.45, 280,535.25 and 112,644.62 is: 155,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,289.45 : 280,535.25 = 112,644.62 : x
  2. Step 2: Convert to fraction form
    203,289.45/280,535.25 = 112,644.62/x
  3. Step 3: Cross multiply
    203,289.45x = 280,535.25 × 112,644.62
  4. Step 4: Simplify right side
    203,289.45x = 31,600,786,632.86
  5. Step 5: Solve for x
    x = 31,600,786,632.86/203,289.45
  6. Step 6: Final answer
    x = 155,447.25

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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.