Home / 211,850.32-292,245.28-135,288.96

Finding the Fourth Proportional to 211,850.32, 292,245.28 and 135,288.96

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Solution

The fourth proportional to 211,850.32, 292,245.28 and 135,288.96 is: 186,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,850.32 : 292,245.28 = 135,288.96 : x
  2. Step 2: Convert to fraction form
    211,850.32/292,245.28 = 135,288.96/x
  3. Step 3: Cross multiply
    211,850.32x = 292,245.28 × 135,288.96
  4. Step 4: Simplify right side
    211,850.32x = 39,537,559,996.11
  5. Step 5: Solve for x
    x = 39,537,559,996.11/211,850.32
  6. Step 6: Final answer
    x = 186,629.69

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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.