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Finding the Fourth Proportional to 327,642.72, 491,673.12 and 215,548.32

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Solution

The fourth proportional to 327,642.72, 491,673.12 and 215,548.32 is: 323,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,642.72 : 491,673.12 = 215,548.32 : x
  2. Step 2: Convert to fraction form
    327,642.72/491,673.12 = 215,548.32/x
  3. Step 3: Cross multiply
    327,642.72x = 491,673.12 × 215,548.32
  4. Step 4: Simplify right side
    327,642.72x = 105,979,315,005.16
  5. Step 5: Solve for x
    x = 105,979,315,005.16/327,642.72
  6. Step 6: Final answer
    x = 323,460.00

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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.