Home / 211,145.27-291,380.52-115,655.39

Finding the Fourth Proportional to 211,145.27, 291,380.52 and 115,655.39

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Solution

The fourth proportional to 211,145.27, 291,380.52 and 115,655.39 is: 159,604.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,145.27 : 291,380.52 = 115,655.39 : x
  2. Step 2: Convert to fraction form
    211,145.27/291,380.52 = 115,655.39/x
  3. Step 3: Cross multiply
    211,145.27x = 291,380.52 × 115,655.39
  4. Step 4: Simplify right side
    211,145.27x = 33,699,726,222.10
  5. Step 5: Solve for x
    x = 33,699,726,222.10/211,145.27
  6. Step 6: Final answer
    x = 159,604.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.