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Finding the Fourth Proportional to 331,369.88, 457,303.38 and 188,143.26

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Solution

The fourth proportional to 331,369.88, 457,303.38 and 188,143.26 is: 259,645.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,369.88 : 457,303.38 = 188,143.26 : x
  2. Step 2: Convert to fraction form
    331,369.88/457,303.38 = 188,143.26/x
  3. Step 3: Cross multiply
    331,369.88x = 457,303.38 × 188,143.26
  4. Step 4: Simplify right side
    331,369.88x = 86,038,548,722.22
  5. Step 5: Solve for x
    x = 86,038,548,722.22/331,369.88
  6. Step 6: Final answer
    x = 259,645.05

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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.