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Finding the Fourth Proportional to 455,315.60, 682,512.60 and 268,230.80

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Solution

The fourth proportional to 455,315.60, 682,512.60 and 268,230.80 is: 402,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,315.60 : 682,512.60 = 268,230.80 : x
  2. Step 2: Convert to fraction form
    455,315.60/682,512.60 = 268,230.80/x
  3. Step 3: Cross multiply
    455,315.60x = 682,512.60 × 268,230.80
  4. Step 4: Simplify right side
    455,315.60x = 183,070,900,708.08
  5. Step 5: Solve for x
    x = 183,070,900,708.08/455,315.60
  6. Step 6: Final answer
    x = 402,074.74

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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.