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Finding the Fourth Proportional to 330,751.79, 496,221.90 and 162,322.72

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Solution

The fourth proportional to 330,751.79, 496,221.90 and 162,322.72 is: 243,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,751.79 : 496,221.90 = 162,322.72 : x
  2. Step 2: Convert to fraction form
    330,751.79/496,221.90 = 162,322.72/x
  3. Step 3: Cross multiply
    330,751.79x = 496,221.90 × 162,322.72
  4. Step 4: Simplify right side
    330,751.79x = 80,548,086,682.30
  5. Step 5: Solve for x
    x = 80,548,086,682.30/330,751.79
  6. Step 6: Final answer
    x = 243,530.31

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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.