Home / 231,416.16-319,263-145,324.50

Finding the Fourth Proportional to 231,416.16, 319,263 and 145,324.50

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Solution

The fourth proportional to 231,416.16, 319,263 and 145,324.50 is: 200,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,416.16 : 319,263 = 145,324.50 : x
  2. Step 2: Convert to fraction form
    231,416.16/319,263 = 145,324.50/x
  3. Step 3: Cross multiply
    231,416.16x = 319,263 × 145,324.50
  4. Step 4: Simplify right side
    231,416.16x = 46,396,735,843.50
  5. Step 5: Solve for x
    x = 46,396,735,843.50/231,416.16
  6. Step 6: Final answer
    x = 200,490.48

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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.