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Finding the Fourth Proportional to 303,145.80, 454,427.10 and 235,640.40

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Solution

The fourth proportional to 303,145.80, 454,427.10 and 235,640.40 is: 353,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,145.80 : 454,427.10 = 235,640.40 : x
  2. Step 2: Convert to fraction form
    303,145.80/454,427.10 = 235,640.40/x
  3. Step 3: Cross multiply
    303,145.80x = 454,427.10 × 235,640.40
  4. Step 4: Simplify right side
    303,145.80x = 107,081,383,614.84
  5. Step 5: Solve for x
    x = 107,081,383,614.84/303,145.80
  6. Step 6: Final answer
    x = 353,233.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.