Home / 331,490.40-496,934.16-120,981.60

Finding the Fourth Proportional to 331,490.40, 496,934.16 and 120,981.60

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Solution

The fourth proportional to 331,490.40, 496,934.16 and 120,981.60 is: 181,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,490.40 : 496,934.16 = 120,981.60 : x
  2. Step 2: Convert to fraction form
    331,490.40/496,934.16 = 120,981.60/x
  3. Step 3: Cross multiply
    331,490.40x = 496,934.16 × 120,981.60
  4. Step 4: Simplify right side
    331,490.40x = 60,119,889,771.46
  5. Step 5: Solve for x
    x = 60,119,889,771.46/331,490.40
  6. Step 6: Final answer
    x = 181,362.39

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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.