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Finding the Fourth Proportional to 331,604.88, 457,688.54 and 210,722.55

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Solution

The fourth proportional to 331,604.88, 457,688.54 and 210,722.55 is: 290,844.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,604.88 : 457,688.54 = 210,722.55 : x
  2. Step 2: Convert to fraction form
    331,604.88/457,688.54 = 210,722.55/x
  3. Step 3: Cross multiply
    331,604.88x = 457,688.54 × 210,722.55
  4. Step 4: Simplify right side
    331,604.88x = 96,445,296,254.58
  5. Step 5: Solve for x
    x = 96,445,296,254.58/331,604.88
  6. Step 6: Final answer
    x = 290,844.02

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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.