Home / 211,400.68-291,732.94-115,908.04

Finding the Fourth Proportional to 211,400.68, 291,732.94 and 115,908.04

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Solution

The fourth proportional to 211,400.68, 291,732.94 and 115,908.04 is: 159,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,400.68 : 291,732.94 = 115,908.04 : x
  2. Step 2: Convert to fraction form
    211,400.68/291,732.94 = 115,908.04/x
  3. Step 3: Cross multiply
    211,400.68x = 291,732.94 × 115,908.04
  4. Step 4: Simplify right side
    211,400.68x = 33,814,193,278.84
  5. Step 5: Solve for x
    x = 33,814,193,278.84/211,400.68
  6. Step 6: Final answer
    x = 159,953.10

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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.