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Finding the Fourth Proportional to 329,800.20, 493,145.10 and 245,819.40

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Solution

The fourth proportional to 329,800.20, 493,145.10 and 245,819.40 is: 367,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,800.20 : 493,145.10 = 245,819.40 : x
  2. Step 2: Convert to fraction form
    329,800.20/493,145.10 = 245,819.40/x
  3. Step 3: Cross multiply
    329,800.20x = 493,145.10 × 245,819.40
  4. Step 4: Simplify right side
    329,800.20x = 121,224,632,594.94
  5. Step 5: Solve for x
    x = 121,224,632,594.94/329,800.20
  6. Step 6: Final answer
    x = 367,569.92

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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.