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Finding the Fourth Proportional to 357,356.97, 493,149.20 and 196,210.62

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Solution

The fourth proportional to 357,356.97, 493,149.20 and 196,210.62 is: 270,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,356.97 : 493,149.20 = 196,210.62 : x
  2. Step 2: Convert to fraction form
    357,356.97/493,149.20 = 196,210.62/x
  3. Step 3: Cross multiply
    357,356.97x = 493,149.20 × 196,210.62
  4. Step 4: Simplify right side
    357,356.97x = 96,761,109,303.45
  5. Step 5: Solve for x
    x = 96,761,109,303.45/357,356.97
  6. Step 6: Final answer
    x = 270,768.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.