Home / 331,445.21-457,202.03-208,889.57

Finding the Fourth Proportional to 331,445.21, 457,202.03 and 208,889.57

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Solution

The fourth proportional to 331,445.21, 457,202.03 and 208,889.57 is: 288,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,445.21 : 457,202.03 = 208,889.57 : x
  2. Step 2: Convert to fraction form
    331,445.21/457,202.03 = 208,889.57/x
  3. Step 3: Cross multiply
    331,445.21x = 457,202.03 × 208,889.57
  4. Step 4: Simplify right side
    331,445.21x = 95,504,735,449.83
  5. Step 5: Solve for x
    x = 95,504,735,449.83/331,445.21
  6. Step 6: Final answer
    x = 288,146.37

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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.