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Finding the Fourth Proportional to 267,626.90, 401,441.04 and 90,258.50

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Solution

The fourth proportional to 267,626.90, 401,441.04 and 90,258.50 is: 135,387.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,626.90 : 401,441.04 = 90,258.50 : x
  2. Step 2: Convert to fraction form
    267,626.90/401,441.04 = 90,258.50/x
  3. Step 3: Cross multiply
    267,626.90x = 401,441.04 × 90,258.50
  4. Step 4: Simplify right side
    267,626.90x = 36,233,464,101.63
  5. Step 5: Solve for x
    x = 36,233,464,101.63/267,626.90
  6. Step 6: Final answer
    x = 135,387.98

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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.