Home / 211,031.17-291,222.88-115,537.84

Finding the Fourth Proportional to 211,031.17, 291,222.88 and 115,537.84

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Solution

The fourth proportional to 211,031.17, 291,222.88 and 115,537.84 is: 159,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,031.17 : 291,222.88 = 115,537.84 : x
  2. Step 2: Convert to fraction form
    211,031.17/291,222.88 = 115,537.84/x
  3. Step 3: Cross multiply
    211,031.17x = 291,222.88 × 115,537.84
  4. Step 4: Simplify right side
    211,031.17x = 33,647,261,936.09
  5. Step 5: Solve for x
    x = 33,647,261,936.09/211,031.17
  6. Step 6: Final answer
    x = 159,442.14

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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.