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Finding the Fourth Proportional to 330,930.72, 496,508.40 and 144,064.80

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Solution

The fourth proportional to 330,930.72, 496,508.40 and 144,064.80 is: 216,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,930.72 : 496,508.40 = 144,064.80 : x
  2. Step 2: Convert to fraction form
    330,930.72/496,508.40 = 144,064.80/x
  3. Step 3: Cross multiply
    330,930.72x = 496,508.40 × 144,064.80
  4. Step 4: Simplify right side
    330,930.72x = 71,529,383,344.32
  5. Step 5: Solve for x
    x = 71,529,383,344.32/330,930.72
  6. Step 6: Final answer
    x = 216,146.10

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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.