Home / 330,823.20-496,234.80-315,271.20

Finding the Fourth Proportional to 330,823.20, 496,234.80 and 315,271.20

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Solution

The fourth proportional to 330,823.20, 496,234.80 and 315,271.20 is: 472,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,823.20 : 496,234.80 = 315,271.20 : x
  2. Step 2: Convert to fraction form
    330,823.20/496,234.80 = 315,271.20/x
  3. Step 3: Cross multiply
    330,823.20x = 496,234.80 × 315,271.20
  4. Step 4: Simplify right side
    330,823.20x = 156,448,540,877.76
  5. Step 5: Solve for x
    x = 156,448,540,877.76/330,823.20
  6. Step 6: Final answer
    x = 472,906.80

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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.