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Finding the Fourth Proportional to 445,912.94, 615,360.30 and 254,930.46

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Solution

The fourth proportional to 445,912.94, 615,360.30 and 254,930.46 is: 351,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,912.94 : 615,360.30 = 254,930.46 : x
  2. Step 2: Convert to fraction form
    445,912.94/615,360.30 = 254,930.46/x
  3. Step 3: Cross multiply
    445,912.94x = 615,360.30 × 254,930.46
  4. Step 4: Simplify right side
    445,912.94x = 156,874,084,344.74
  5. Step 5: Solve for x
    x = 156,874,084,344.74/445,912.94
  6. Step 6: Final answer
    x = 351,804.29

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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.