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Finding the Fourth Proportional to 303,223.08, 418,131.27 and 211,449.06

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Solution

The fourth proportional to 303,223.08, 418,131.27 and 211,449.06 is: 291,578.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,223.08 : 418,131.27 = 211,449.06 : x
  2. Step 2: Convert to fraction form
    303,223.08/418,131.27 = 211,449.06/x
  3. Step 3: Cross multiply
    303,223.08x = 418,131.27 × 211,449.06
  4. Step 4: Simplify right side
    303,223.08x = 88,413,463,998.11
  5. Step 5: Solve for x
    x = 88,413,463,998.11/303,223.08
  6. Step 6: Final answer
    x = 291,578.94

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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.