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Finding the Fourth Proportional to 276,663.98, 380,992.29 and 240,348.84

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Solution

The fourth proportional to 276,663.98, 380,992.29 and 240,348.84 is: 330,982.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,663.98 : 380,992.29 = 240,348.84 : x
  2. Step 2: Convert to fraction form
    276,663.98/380,992.29 = 240,348.84/x
  3. Step 3: Cross multiply
    276,663.98x = 380,992.29 × 240,348.84
  4. Step 4: Simplify right side
    276,663.98x = 91,571,054,950.44
  5. Step 5: Solve for x
    x = 91,571,054,950.44/276,663.98
  6. Step 6: Final answer
    x = 330,982.94

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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.