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Finding the Fourth Proportional to 329,530.61, 493,956.52 and 129,770.03

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Solution

The fourth proportional to 329,530.61, 493,956.52 and 129,770.03 is: 194,521.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,530.61 : 493,956.52 = 129,770.03 : x
  2. Step 2: Convert to fraction form
    329,530.61/493,956.52 = 129,770.03/x
  3. Step 3: Cross multiply
    329,530.61x = 493,956.52 × 129,770.03
  4. Step 4: Simplify right side
    329,530.61x = 64,100,749,624.89
  5. Step 5: Solve for x
    x = 64,100,749,624.89/329,530.61
  6. Step 6: Final answer
    x = 194,521.38

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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.