Home / 260,197.52-390,322.24-70,660.96

Finding the Fourth Proportional to 260,197.52, 390,322.24 and 70,660.96

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Solution

The fourth proportional to 260,197.52, 390,322.24 and 70,660.96 is: 105,998.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,197.52 : 390,322.24 = 70,660.96 : x
  2. Step 2: Convert to fraction form
    260,197.52/390,322.24 = 70,660.96/x
  3. Step 3: Cross multiply
    260,197.52x = 390,322.24 × 70,660.96
  4. Step 4: Simplify right side
    260,197.52x = 27,580,544,187.75
  5. Step 5: Solve for x
    x = 27,580,544,187.75/260,197.52
  6. Step 6: Final answer
    x = 105,998.49

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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.