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Finding the Fourth Proportional to 485,286.58, 669,686.29 and 264,525.81

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Solution

The fourth proportional to 485,286.58, 669,686.29 and 264,525.81 is: 365,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,286.58 : 669,686.29 = 264,525.81 : x
  2. Step 2: Convert to fraction form
    485,286.58/669,686.29 = 264,525.81/x
  3. Step 3: Cross multiply
    485,286.58x = 669,686.29 × 264,525.81
  4. Step 4: Simplify right side
    485,286.58x = 177,149,308,308.15
  5. Step 5: Solve for x
    x = 177,149,308,308.15/485,286.58
  6. Step 6: Final answer
    x = 365,040.61

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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.