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Finding the Fourth Proportional to 330,951.20, 496,426.80 and 242,823.20

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Solution

The fourth proportional to 330,951.20, 496,426.80 and 242,823.20 is: 364,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,951.20 : 496,426.80 = 242,823.20 : x
  2. Step 2: Convert to fraction form
    330,951.20/496,426.80 = 242,823.20/x
  3. Step 3: Cross multiply
    330,951.20x = 496,426.80 × 242,823.20
  4. Step 4: Simplify right side
    330,951.20x = 120,543,944,141.76
  5. Step 5: Solve for x
    x = 120,543,944,141.76/330,951.20
  6. Step 6: Final answer
    x = 364,234.80

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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.