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Finding the Fourth Proportional to 329,089.10, 493,633.71 and 79,771.10

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Solution

The fourth proportional to 329,089.10, 493,633.71 and 79,771.10 is: 119,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,089.10 : 493,633.71 = 79,771.10 : x
  2. Step 2: Convert to fraction form
    329,089.10/493,633.71 = 79,771.10/x
  3. Step 3: Cross multiply
    329,089.10x = 493,633.71 × 79,771.10
  4. Step 4: Simplify right side
    329,089.10x = 39,377,701,575.61
  5. Step 5: Solve for x
    x = 39,377,701,575.61/329,089.10
  6. Step 6: Final answer
    x = 119,656.66

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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.