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Finding the Fourth Proportional to 330,635.76, 496,000.40 and 105,943.68

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Solution

The fourth proportional to 330,635.76, 496,000.40 and 105,943.68 is: 158,930.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,635.76 : 496,000.40 = 105,943.68 : x
  2. Step 2: Convert to fraction form
    330,635.76/496,000.40 = 105,943.68/x
  3. Step 3: Cross multiply
    330,635.76x = 496,000.40 × 105,943.68
  4. Step 4: Simplify right side
    330,635.76x = 52,548,107,657.47
  5. Step 5: Solve for x
    x = 52,548,107,657.47/330,635.76
  6. Step 6: Final answer
    x = 158,930.50

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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.