Home / 260,218.04-390,014.73-133,917.89

Finding the Fourth Proportional to 260,218.04, 390,014.73 and 133,917.89

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Solution

The fourth proportional to 260,218.04, 390,014.73 and 133,917.89 is: 200,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,218.04 : 390,014.73 = 133,917.89 : x
  2. Step 2: Convert to fraction form
    260,218.04/390,014.73 = 133,917.89/x
  3. Step 3: Cross multiply
    260,218.04x = 390,014.73 × 133,917.89
  4. Step 4: Simplify right side
    260,218.04x = 52,229,947,760.45
  5. Step 5: Solve for x
    x = 52,229,947,760.45/260,218.04
  6. Step 6: Final answer
    x = 200,716.09

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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.