Home / 331,267.50-496,901.25-81,949.50

Finding the Fourth Proportional to 331,267.50, 496,901.25 and 81,949.50

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Solution

The fourth proportional to 331,267.50, 496,901.25 and 81,949.50 is: 122,924.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,267.50 : 496,901.25 = 81,949.50 : x
  2. Step 2: Convert to fraction form
    331,267.50/496,901.25 = 81,949.50/x
  3. Step 3: Cross multiply
    331,267.50x = 496,901.25 × 81,949.50
  4. Step 4: Simplify right side
    331,267.50x = 40,720,808,986.88
  5. Step 5: Solve for x
    x = 40,720,808,986.88/331,267.50
  6. Step 6: Final answer
    x = 122,924.25

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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.