Home / 231,828.12-320,021.16-151,324.65

Finding the Fourth Proportional to 231,828.12, 320,021.16 and 151,324.65

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Solution

The fourth proportional to 231,828.12, 320,021.16 and 151,324.65 is: 208,892.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,828.12 : 320,021.16 = 151,324.65 : x
  2. Step 2: Convert to fraction form
    231,828.12/320,021.16 = 151,324.65/x
  3. Step 3: Cross multiply
    231,828.12x = 320,021.16 × 151,324.65
  4. Step 4: Simplify right side
    231,828.12x = 48,427,090,029.59
  5. Step 5: Solve for x
    x = 48,427,090,029.59/231,828.12
  6. Step 6: Final answer
    x = 208,892.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.