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Finding the Fourth Proportional to 217,211.36, 325,871.31 and 153,294.30

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Solution

The fourth proportional to 217,211.36, 325,871.31 and 153,294.30 is: 229,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,211.36 : 325,871.31 = 153,294.30 : x
  2. Step 2: Convert to fraction form
    217,211.36/325,871.31 = 153,294.30/x
  3. Step 3: Cross multiply
    217,211.36x = 325,871.31 × 153,294.30
  4. Step 4: Simplify right side
    217,211.36x = 49,954,214,356.53
  5. Step 5: Solve for x
    x = 49,954,214,356.53/217,211.36
  6. Step 6: Final answer
    x = 229,979.76

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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.