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Finding the Fourth Proportional to 330,693.60, 496,040.40 and 219,885.60

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Solution

The fourth proportional to 330,693.60, 496,040.40 and 219,885.60 is: 329,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,693.60 : 496,040.40 = 219,885.60 : x
  2. Step 2: Convert to fraction form
    330,693.60/496,040.40 = 219,885.60/x
  3. Step 3: Cross multiply
    330,693.60x = 496,040.40 × 219,885.60
  4. Step 4: Simplify right side
    330,693.60x = 109,072,140,978.24
  5. Step 5: Solve for x
    x = 109,072,140,978.24/330,693.60
  6. Step 6: Final answer
    x = 329,828.40

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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.