Home / 216,421.27-324,667.44-66,658.24

Finding the Fourth Proportional to 216,421.27, 324,667.44 and 66,658.24

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Solution

The fourth proportional to 216,421.27, 324,667.44 and 66,658.24 is: 99,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,421.27 : 324,667.44 = 66,658.24 : x
  2. Step 2: Convert to fraction form
    216,421.27/324,667.44 = 66,658.24/x
  3. Step 3: Cross multiply
    216,421.27x = 324,667.44 × 66,658.24
  4. Step 4: Simplify right side
    216,421.27x = 21,641,760,541.54
  5. Step 5: Solve for x
    x = 21,641,760,541.54/216,421.27
  6. Step 6: Final answer
    x = 99,998.31

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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.