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Finding the Fourth Proportional to 381,698.10, 572,875.20 and 168,793.65

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Solution

The fourth proportional to 381,698.10, 572,875.20 and 168,793.65 is: 253,335.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,698.10 : 572,875.20 = 168,793.65 : x
  2. Step 2: Convert to fraction form
    381,698.10/572,875.20 = 168,793.65/x
  3. Step 3: Cross multiply
    381,698.10x = 572,875.20 × 168,793.65
  4. Step 4: Simplify right side
    381,698.10x = 96,697,696,002.48
  5. Step 5: Solve for x
    x = 96,697,696,002.48/381,698.10
  6. Step 6: Final answer
    x = 253,335.54

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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.