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Finding the Fourth Proportional to 323,731.20, 484,819.20 and 309,734.40

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Solution

The fourth proportional to 323,731.20, 484,819.20 and 309,734.40 is: 463,857.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,731.20 : 484,819.20 = 309,734.40 : x
  2. Step 2: Convert to fraction form
    323,731.20/484,819.20 = 309,734.40/x
  3. Step 3: Cross multiply
    323,731.20x = 484,819.20 × 309,734.40
  4. Step 4: Simplify right side
    323,731.20x = 150,165,184,020.48
  5. Step 5: Solve for x
    x = 150,165,184,020.48/323,731.20
  6. Step 6: Final answer
    x = 463,857.62

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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.