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Finding the Fourth Proportional to 191,992.50, 288,117.30 and 79,672.83

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Solution

The fourth proportional to 191,992.50, 288,117.30 and 79,672.83 is: 119,562.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,992.50 : 288,117.30 = 79,672.83 : x
  2. Step 2: Convert to fraction form
    191,992.50/288,117.30 = 79,672.83/x
  3. Step 3: Cross multiply
    191,992.50x = 288,117.30 × 79,672.83
  4. Step 4: Simplify right side
    191,992.50x = 22,955,120,662.96
  5. Step 5: Solve for x
    x = 22,955,120,662.96/191,992.50
  6. Step 6: Final answer
    x = 119,562.59

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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.