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Finding the Fourth Proportional to 296,965.60, 445,251.60 and 163,909.60

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Solution

The fourth proportional to 296,965.60, 445,251.60 and 163,909.60 is: 245,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,965.60 : 445,251.60 = 163,909.60 : x
  2. Step 2: Convert to fraction form
    296,965.60/445,251.60 = 163,909.60/x
  3. Step 3: Cross multiply
    296,965.60x = 445,251.60 × 163,909.60
  4. Step 4: Simplify right side
    296,965.60x = 72,981,011,655.36
  5. Step 5: Solve for x
    x = 72,981,011,655.36/296,965.60
  6. Step 6: Final answer
    x = 245,755.78

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1.5x scale

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.