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Finding the Fourth Proportional to 330,818.60, 496,373.70 and 153,234.20

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Solution

The fourth proportional to 330,818.60, 496,373.70 and 153,234.20 is: 229,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,818.60 : 496,373.70 = 153,234.20 : x
  2. Step 2: Convert to fraction form
    330,818.60/496,373.70 = 153,234.20/x
  3. Step 3: Cross multiply
    330,818.60x = 496,373.70 × 153,234.20
  4. Step 4: Simplify right side
    330,818.60x = 76,061,426,820.54
  5. Step 5: Solve for x
    x = 76,061,426,820.54/330,818.60
  6. Step 6: Final answer
    x = 229,918.83

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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.