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Finding the Fourth Proportional to 328,117.30, 491,301.15 and 328,117.30

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Solution

The fourth proportional to 328,117.30, 491,301.15 and 328,117.30 is: 491,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,117.30 : 491,301.15 = 328,117.30 : x
  2. Step 2: Convert to fraction form
    328,117.30/491,301.15 = 328,117.30/x
  3. Step 3: Cross multiply
    328,117.30x = 491,301.15 × 328,117.30
  4. Step 4: Simplify right side
    328,117.30x = 161,204,406,824.90
  5. Step 5: Solve for x
    x = 161,204,406,824.90/328,117.30
  6. Step 6: Final answer
    x = 491,301.15

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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.