Home / 216,412.20-324,618.30-213,301.80

Finding the Fourth Proportional to 216,412.20, 324,618.30 and 213,301.80

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Solution

The fourth proportional to 216,412.20, 324,618.30 and 213,301.80 is: 319,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,412.20 : 324,618.30 = 213,301.80 : x
  2. Step 2: Convert to fraction form
    216,412.20/324,618.30 = 213,301.80/x
  3. Step 3: Cross multiply
    216,412.20x = 324,618.30 × 213,301.80
  4. Step 4: Simplify right side
    216,412.20x = 69,241,667,702.94
  5. Step 5: Solve for x
    x = 69,241,667,702.94/216,412.20
  6. Step 6: Final answer
    x = 319,952.70

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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.