Home / 215,980.08-324,032.30-66,242.33

Finding the Fourth Proportional to 215,980.08, 324,032.30 and 66,242.33

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Solution

The fourth proportional to 215,980.08, 324,032.30 and 66,242.33 is: 99,382.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,980.08 : 324,032.30 = 66,242.33 : x
  2. Step 2: Convert to fraction form
    215,980.08/324,032.30 = 66,242.33/x
  3. Step 3: Cross multiply
    215,980.08x = 324,032.30 × 66,242.33
  4. Step 4: Simplify right side
    215,980.08x = 21,464,654,059.42
  5. Step 5: Solve for x
    x = 21,464,654,059.42/215,980.08
  6. Step 6: Final answer
    x = 99,382.57

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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.