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Finding the Fourth Proportional to 305,232.54, 420,735.57 and 240,596.97

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Solution

The fourth proportional to 305,232.54, 420,735.57 and 240,596.97 is: 331,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,232.54 : 420,735.57 = 240,596.97 : x
  2. Step 2: Convert to fraction form
    305,232.54/420,735.57 = 240,596.97/x
  3. Step 3: Cross multiply
    305,232.54x = 420,735.57 × 240,596.97
  4. Step 4: Simplify right side
    305,232.54x = 101,227,700,833.23
  5. Step 5: Solve for x
    x = 101,227,700,833.23/305,232.54
  6. Step 6: Final answer
    x = 331,641.25

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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.