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Finding the Fourth Proportional to 217,967.10, 326,950.65 and 191,723.10

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Solution

The fourth proportional to 217,967.10, 326,950.65 and 191,723.10 is: 287,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,967.10 : 326,950.65 = 191,723.10 : x
  2. Step 2: Convert to fraction form
    217,967.10/326,950.65 = 191,723.10/x
  3. Step 3: Cross multiply
    217,967.10x = 326,950.65 × 191,723.10
  4. Step 4: Simplify right side
    217,967.10x = 62,683,992,165.02
  5. Step 5: Solve for x
    x = 62,683,992,165.02/217,967.10
  6. Step 6: Final answer
    x = 287,584.65

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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.