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Finding the Fourth Proportional to 357,495.72, 493,350.03 and 196,365.66

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Solution

The fourth proportional to 357,495.72, 493,350.03 and 196,365.66 is: 270,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,495.72 : 493,350.03 = 196,365.66 : x
  2. Step 2: Convert to fraction form
    357,495.72/493,350.03 = 196,365.66/x
  3. Step 3: Cross multiply
    357,495.72x = 493,350.03 × 196,365.66
  4. Step 4: Simplify right side
    357,495.72x = 96,877,004,251.97
  5. Step 5: Solve for x
    x = 96,877,004,251.97/357,495.72
  6. Step 6: Final answer
    x = 270,987.87

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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.