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Finding the Fourth Proportional to 331,604.20, 497,406.30 and 189,886.60

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Solution

The fourth proportional to 331,604.20, 497,406.30 and 189,886.60 is: 284,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,604.20 : 497,406.30 = 189,886.60 : x
  2. Step 2: Convert to fraction form
    331,604.20/497,406.30 = 189,886.60/x
  3. Step 3: Cross multiply
    331,604.20x = 497,406.30 × 189,886.60
  4. Step 4: Simplify right side
    331,604.20x = 94,450,791,125.58
  5. Step 5: Solve for x
    x = 94,450,791,125.58/331,604.20
  6. Step 6: Final answer
    x = 284,829.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.