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Finding the Fourth Proportional to 331,410.40, 457,357.80 and 188,165.68

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Solution

The fourth proportional to 331,410.40, 457,357.80 and 188,165.68 is: 259,675.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,410.40 : 457,357.80 = 188,165.68 : x
  2. Step 2: Convert to fraction form
    331,410.40/457,357.80 = 188,165.68/x
  3. Step 3: Cross multiply
    331,410.40x = 457,357.80 × 188,165.68
  4. Step 4: Simplify right side
    331,410.40x = 86,059,041,440.30
  5. Step 5: Solve for x
    x = 86,059,041,440.30/331,410.40
  6. Step 6: Final answer
    x = 259,675.14

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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.