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Finding the Fourth Proportional to 352,199.86, 486,245.25 and 231,555.22

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Solution

The fourth proportional to 352,199.86, 486,245.25 and 231,555.22 is: 319,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,199.86 : 486,245.25 = 231,555.22 : x
  2. Step 2: Convert to fraction form
    352,199.86/486,245.25 = 231,555.22/x
  3. Step 3: Cross multiply
    352,199.86x = 486,245.25 × 231,555.22
  4. Step 4: Simplify right side
    352,199.86x = 112,592,625,837.71
  5. Step 5: Solve for x
    x = 112,592,625,837.71/352,199.86
  6. Step 6: Final answer
    x = 319,683.90

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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.