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Finding the Fourth Proportional to 445,804.80, 615,200.40 and 254,806.80

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Solution

The fourth proportional to 445,804.80, 615,200.40 and 254,806.80 is: 351,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,804.80 : 615,200.40 = 254,806.80 : x
  2. Step 2: Convert to fraction form
    445,804.80/615,200.40 = 254,806.80/x
  3. Step 3: Cross multiply
    445,804.80x = 615,200.40 × 254,806.80
  4. Step 4: Simplify right side
    445,804.80x = 156,757,245,282.72
  5. Step 5: Solve for x
    x = 156,757,245,282.72/445,804.80
  6. Step 6: Final answer
    x = 351,627.54

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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.