Home / 260,531.87-390,984.44-110,877.30

Finding the Fourth Proportional to 260,531.87, 390,984.44 and 110,877.30

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Solution

The fourth proportional to 260,531.87, 390,984.44 and 110,877.30 is: 166,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,531.87 : 390,984.44 = 110,877.30 : x
  2. Step 2: Convert to fraction form
    260,531.87/390,984.44 = 110,877.30/x
  3. Step 3: Cross multiply
    260,531.87x = 390,984.44 × 110,877.30
  4. Step 4: Simplify right side
    260,531.87x = 43,351,298,494.83
  5. Step 5: Solve for x
    x = 43,351,298,494.83/260,531.87
  6. Step 6: Final answer
    x = 166,395.38

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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.