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Finding the Fourth Proportional to 305,246.33, 420,754.46 and 240,610.76

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Solution

The fourth proportional to 305,246.33, 420,754.46 and 240,610.76 is: 331,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,246.33 : 420,754.46 = 240,610.76 : x
  2. Step 2: Convert to fraction form
    305,246.33/420,754.46 = 240,610.76/x
  3. Step 3: Cross multiply
    305,246.33x = 420,754.46 × 240,610.76
  4. Step 4: Simplify right side
    305,246.33x = 101,238,047,087.16
  5. Step 5: Solve for x
    x = 101,238,047,087.16/305,246.33
  6. Step 6: Final answer
    x = 331,660.17

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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.