Home / 331,214.40-496,821.60-165,326.40

Finding the Fourth Proportional to 331,214.40, 496,821.60 and 165,326.40

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Solution

The fourth proportional to 331,214.40, 496,821.60 and 165,326.40 is: 247,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,214.40 : 496,821.60 = 165,326.40 : x
  2. Step 2: Convert to fraction form
    331,214.40/496,821.60 = 165,326.40/x
  3. Step 3: Cross multiply
    331,214.40x = 496,821.60 × 165,326.40
  4. Step 4: Simplify right side
    331,214.40x = 82,137,726,570.24
  5. Step 5: Solve for x
    x = 82,137,726,570.24/331,214.40
  6. Step 6: Final answer
    x = 247,989.60

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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.