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Finding the Fourth Proportional to 260,831, 390,608.42 and 235,587.24

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Solution

The fourth proportional to 260,831, 390,608.42 and 235,587.24 is: 352,804.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,831 : 390,608.42 = 235,587.24 : x
  2. Step 2: Convert to fraction form
    260,831/390,608.42 = 235,587.24/x
  3. Step 3: Cross multiply
    260,831x = 390,608.42 × 235,587.24
  4. Step 4: Simplify right side
    260,831x = 92,022,359,588.56
  5. Step 5: Solve for x
    x = 92,022,359,588.56/260,831
  6. Step 6: Final answer
    x = 352,804.53

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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.