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Finding the Fourth Proportional to 343,728, 474,338.82 and 192,821.76

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Solution

The fourth proportional to 343,728, 474,338.82 and 192,821.76 is: 266,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,728 : 474,338.82 = 192,821.76 : x
  2. Step 2: Convert to fraction form
    343,728/474,338.82 = 192,821.76/x
  3. Step 3: Cross multiply
    343,728x = 474,338.82 × 192,821.76
  4. Step 4: Simplify right side
    343,728x = 91,462,846,108.72
  5. Step 5: Solve for x
    x = 91,462,846,108.72/343,728
  6. Step 6: Final answer
    x = 266,090.76

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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.