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Finding the Fourth Proportional to 267,728.93, 401,594.79 and 90,237.48

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Solution

The fourth proportional to 267,728.93, 401,594.79 and 90,237.48 is: 135,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,728.93 : 401,594.79 = 90,237.48 : x
  2. Step 2: Convert to fraction form
    267,728.93/401,594.79 = 90,237.48/x
  3. Step 3: Cross multiply
    267,728.93x = 401,594.79 × 90,237.48
  4. Step 4: Simplify right side
    267,728.93x = 36,238,901,830.73
  5. Step 5: Solve for x
    x = 36,238,901,830.73/267,728.93
  6. Step 6: Final answer
    x = 135,356.69

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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.