Home / 260,317.86-390,197.34-110,431.68

Finding the Fourth Proportional to 260,317.86, 390,197.34 and 110,431.68

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Solution

The fourth proportional to 260,317.86, 390,197.34 and 110,431.68 is: 165,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,317.86 : 390,197.34 = 110,431.68 : x
  2. Step 2: Convert to fraction form
    260,317.86/390,197.34 = 110,431.68/x
  3. Step 3: Cross multiply
    260,317.86x = 390,197.34 × 110,431.68
  4. Step 4: Simplify right side
    260,317.86x = 43,090,147,787.73
  5. Step 5: Solve for x
    x = 43,090,147,787.73/260,317.86
  6. Step 6: Final answer
    x = 165,528.97

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1.5x scale

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.