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Finding the Fourth Proportional to 223,423.68, 308,396.64 and 143,067.60

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Solution

The fourth proportional to 223,423.68, 308,396.64 and 143,067.60 is: 197,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,423.68 : 308,396.64 = 143,067.60 : x
  2. Step 2: Convert to fraction form
    223,423.68/308,396.64 = 143,067.60/x
  3. Step 3: Cross multiply
    223,423.68x = 308,396.64 × 143,067.60
  4. Step 4: Simplify right side
    223,423.68x = 44,121,567,132.86
  5. Step 5: Solve for x
    x = 44,121,567,132.86/223,423.68
  6. Step 6: Final answer
    x = 197,479.37

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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.