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Finding the Fourth Proportional to 303,929.80, 456,269.10 and 191,609.80

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Solution

The fourth proportional to 303,929.80, 456,269.10 and 191,609.80 is: 287,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,929.80 : 456,269.10 = 191,609.80 : x
  2. Step 2: Convert to fraction form
    303,929.80/456,269.10 = 191,609.80/x
  3. Step 3: Cross multiply
    303,929.80x = 456,269.10 × 191,609.80
  4. Step 4: Simplify right side
    303,929.80x = 87,425,630,997.18
  5. Step 5: Solve for x
    x = 87,425,630,997.18/303,929.80
  6. Step 6: Final answer
    x = 287,650.74

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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.