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Finding the Fourth Proportional to 377,705.99, 521,271.92 and 282,046.61

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Solution

The fourth proportional to 377,705.99, 521,271.92 and 282,046.61 is: 389,252.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,705.99 : 521,271.92 = 282,046.61 : x
  2. Step 2: Convert to fraction form
    377,705.99/521,271.92 = 282,046.61/x
  3. Step 3: Cross multiply
    377,705.99x = 521,271.92 × 282,046.61
  4. Step 4: Simplify right side
    377,705.99x = 147,022,979,932.49
  5. Step 5: Solve for x
    x = 147,022,979,932.49/377,705.99
  6. Step 6: Final answer
    x = 389,252.44

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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.