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Finding the Fourth Proportional to 327,562.95, 491,341.56 and 90,905.64

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Solution

The fourth proportional to 327,562.95, 491,341.56 and 90,905.64 is: 136,357.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,562.95 : 491,341.56 = 90,905.64 : x
  2. Step 2: Convert to fraction form
    327,562.95/491,341.56 = 90,905.64/x
  3. Step 3: Cross multiply
    327,562.95x = 491,341.56 × 90,905.64
  4. Step 4: Simplify right side
    327,562.95x = 44,665,718,970.40
  5. Step 5: Solve for x
    x = 44,665,718,970.40/327,562.95
  6. Step 6: Final answer
    x = 136,357.66

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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.