Home / 280,200.26-420,151.86-122,244.19

Finding the Fourth Proportional to 280,200.26, 420,151.86 and 122,244.19

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Solution

The fourth proportional to 280,200.26, 420,151.86 and 122,244.19 is: 183,301.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,200.26 : 420,151.86 = 122,244.19 : x
  2. Step 2: Convert to fraction form
    280,200.26/420,151.86 = 122,244.19/x
  3. Step 3: Cross multiply
    280,200.26x = 420,151.86 × 122,244.19
  4. Step 4: Simplify right side
    280,200.26x = 51,361,122,752.31
  5. Step 5: Solve for x
    x = 51,361,122,752.31/280,200.26
  6. Step 6: Final answer
    x = 183,301.48

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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.