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Finding the Fourth Proportional to 445,910.94, 615,357.54 and 254,928.47

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Solution

The fourth proportional to 445,910.94, 615,357.54 and 254,928.47 is: 351,801.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,910.94 : 615,357.54 = 254,928.47 : x
  2. Step 2: Convert to fraction form
    445,910.94/615,357.54 = 254,928.47/x
  3. Step 3: Cross multiply
    445,910.94x = 615,357.54 × 254,928.47
  4. Step 4: Simplify right side
    445,910.94x = 156,872,153,098.38
  5. Step 5: Solve for x
    x = 156,872,153,098.38/445,910.94
  6. Step 6: Final answer
    x = 351,801.53

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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.