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Finding the Fourth Proportional to 357,499.45, 493,353.29 and 196,358.25

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Solution

The fourth proportional to 357,499.45, 493,353.29 and 196,358.25 is: 270,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,499.45 : 493,353.29 = 196,358.25 : x
  2. Step 2: Convert to fraction form
    357,499.45/493,353.29 = 196,358.25/x
  3. Step 3: Cross multiply
    357,499.45x = 493,353.29 × 196,358.25
  4. Step 4: Simplify right side
    357,499.45x = 96,873,988,656.14
  5. Step 5: Solve for x
    x = 96,873,988,656.14/357,499.45
  6. Step 6: Final answer
    x = 270,976.61

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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.