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Finding the Fourth Proportional to 331,333.20, 497,388.60 and 329,000.40

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Solution

The fourth proportional to 331,333.20, 497,388.60 and 329,000.40 is: 493,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,333.20 : 497,388.60 = 329,000.40 : x
  2. Step 2: Convert to fraction form
    331,333.20/497,388.60 = 329,000.40/x
  3. Step 3: Cross multiply
    331,333.20x = 497,388.60 × 329,000.40
  4. Step 4: Simplify right side
    331,333.20x = 163,641,048,355.44
  5. Step 5: Solve for x
    x = 163,641,048,355.44/331,333.20
  6. Step 6: Final answer
    x = 493,886.66

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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.