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Finding the Fourth Proportional to 327,604.84, 491,407.48 and 90,947.56

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Solution

The fourth proportional to 327,604.84, 491,407.48 and 90,947.56 is: 136,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,604.84 : 491,407.48 = 90,947.56 : x
  2. Step 2: Convert to fraction form
    327,604.84/491,407.48 = 90,947.56/x
  3. Step 3: Cross multiply
    327,604.84x = 491,407.48 × 90,947.56
  4. Step 4: Simplify right side
    327,604.84x = 44,692,311,271.75
  5. Step 5: Solve for x
    x = 44,692,311,271.75/327,604.84
  6. Step 6: Final answer
    x = 136,421.40

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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.