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Finding the Fourth Proportional to 445,407.60, 668,258.01 and 296,234.76

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Solution

The fourth proportional to 445,407.60, 668,258.01 and 296,234.76 is: 444,449.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,407.60 : 668,258.01 = 296,234.76 : x
  2. Step 2: Convert to fraction form
    445,407.60/668,258.01 = 296,234.76/x
  3. Step 3: Cross multiply
    445,407.60x = 668,258.01 × 296,234.76
  4. Step 4: Simplify right side
    445,407.60x = 197,961,251,210.43
  5. Step 5: Solve for x
    x = 197,961,251,210.43/445,407.60
  6. Step 6: Final answer
    x = 444,449.65

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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.