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Finding the Fourth Proportional to 331,650.80, 457,679.65 and 188,418.70

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Solution

The fourth proportional to 331,650.80, 457,679.65 and 188,418.70 is: 260,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,650.80 : 457,679.65 = 188,418.70 : x
  2. Step 2: Convert to fraction form
    331,650.80/457,679.65 = 188,418.70/x
  3. Step 3: Cross multiply
    331,650.80x = 457,679.65 × 188,418.70
  4. Step 4: Simplify right side
    331,650.80x = 86,235,404,669.46
  5. Step 5: Solve for x
    x = 86,235,404,669.46/331,650.80
  6. Step 6: Final answer
    x = 260,018.68

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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.