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Finding the Fourth Proportional to 303,028.32, 418,025.28 and 231,283.80

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Solution

The fourth proportional to 303,028.32, 418,025.28 and 231,283.80 is: 319,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,028.32 : 418,025.28 = 231,283.80 : x
  2. Step 2: Convert to fraction form
    303,028.32/418,025.28 = 231,283.80/x
  3. Step 3: Cross multiply
    303,028.32x = 418,025.28 × 231,283.80
  4. Step 4: Simplify right side
    303,028.32x = 96,682,475,254.46
  5. Step 5: Solve for x
    x = 96,682,475,254.46/303,028.32
  6. Step 6: Final answer
    x = 319,054.26

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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.