Home / 211,436.24-291,767.76-115,940.90

Finding the Fourth Proportional to 211,436.24, 291,767.76 and 115,940.90

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Solution

The fourth proportional to 211,436.24, 291,767.76 and 115,940.90 is: 159,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,436.24 : 291,767.76 = 115,940.90 : x
  2. Step 2: Convert to fraction form
    211,436.24/291,767.76 = 115,940.90/x
  3. Step 3: Cross multiply
    211,436.24x = 291,767.76 × 115,940.90
  4. Step 4: Simplify right side
    211,436.24x = 33,827,816,685.38
  5. Step 5: Solve for x
    x = 33,827,816,685.38/211,436.24
  6. Step 6: Final answer
    x = 159,990.63

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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.