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Finding the Fourth Proportional to 493,533.78, 681,078.15 and 267,178.74

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Solution

The fourth proportional to 493,533.78, 681,078.15 and 267,178.74 is: 368,707.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,533.78 : 681,078.15 = 267,178.74 : x
  2. Step 2: Convert to fraction form
    493,533.78/681,078.15 = 267,178.74/x
  3. Step 3: Cross multiply
    493,533.78x = 681,078.15 × 267,178.74
  4. Step 4: Simplify right side
    493,533.78x = 181,969,601,958.53
  5. Step 5: Solve for x
    x = 181,969,601,958.53/493,533.78
  6. Step 6: Final answer
    x = 368,707.49

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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.