Home / 211,031.67-291,223.57-115,538.34

Finding the Fourth Proportional to 211,031.67, 291,223.57 and 115,538.34

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Solution

The fourth proportional to 211,031.67, 291,223.57 and 115,538.34 is: 159,442.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,031.67 : 291,223.57 = 115,538.34 : x
  2. Step 2: Convert to fraction form
    211,031.67/291,223.57 = 115,538.34/x
  3. Step 3: Cross multiply
    211,031.67x = 291,223.57 × 115,538.34
  4. Step 4: Simplify right side
    211,031.67x = 33,647,487,268.98
  5. Step 5: Solve for x
    x = 33,647,487,268.98/211,031.67
  6. Step 6: Final answer
    x = 159,442.83

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1.5x scale

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.