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Finding the Fourth Proportional to 259,841.58, 389,784.24 and 91,347.54

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Solution

The fourth proportional to 259,841.58, 389,784.24 and 91,347.54 is: 137,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,841.58 : 389,784.24 = 91,347.54 : x
  2. Step 2: Convert to fraction form
    259,841.58/389,784.24 = 91,347.54/x
  3. Step 3: Cross multiply
    259,841.58x = 389,784.24 × 91,347.54
  4. Step 4: Simplify right side
    259,841.58x = 35,605,831,454.77
  5. Step 5: Solve for x
    x = 35,605,831,454.77/259,841.58
  6. Step 6: Final answer
    x = 137,029.00

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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.