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Finding the Fourth Proportional to 303,062.19, 418,405.01 and 269,435.13

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Solution

The fourth proportional to 303,062.19, 418,405.01 and 269,435.13 is: 371,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,062.19 : 418,405.01 = 269,435.13 : x
  2. Step 2: Convert to fraction form
    303,062.19/418,405.01 = 269,435.13/x
  3. Step 3: Cross multiply
    303,062.19x = 418,405.01 × 269,435.13
  4. Step 4: Simplify right side
    303,062.19x = 112,733,006,843.56
  5. Step 5: Solve for x
    x = 112,733,006,843.56/303,062.19
  6. Step 6: Final answer
    x = 371,979.79

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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.