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Finding the Fourth Proportional to 296,507.80, 444,819.30 and 128,027.80

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Solution

The fourth proportional to 296,507.80, 444,819.30 and 128,027.80 is: 192,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,507.80 : 444,819.30 = 128,027.80 : x
  2. Step 2: Convert to fraction form
    296,507.80/444,819.30 = 128,027.80/x
  3. Step 3: Cross multiply
    296,507.80x = 444,819.30 × 128,027.80
  4. Step 4: Simplify right side
    296,507.80x = 56,949,236,376.54
  5. Step 5: Solve for x
    x = 56,949,236,376.54/296,507.80
  6. Step 6: Final answer
    x = 192,066.57

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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.