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Finding the Fourth Proportional to 331,776.54, 457,830.63 and 218,752.38

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Solution

The fourth proportional to 331,776.54, 457,830.63 and 218,752.38 is: 301,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,776.54 : 457,830.63 = 218,752.38 : x
  2. Step 2: Convert to fraction form
    331,776.54/457,830.63 = 218,752.38/x
  3. Step 3: Cross multiply
    331,776.54x = 457,830.63 × 218,752.38
  4. Step 4: Simplify right side
    331,776.54x = 100,151,539,949.40
  5. Step 5: Solve for x
    x = 100,151,539,949.40/331,776.54
  6. Step 6: Final answer
    x = 301,864.44

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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.