Home / 211,049.28-291,247.92-115,555.92

Finding the Fourth Proportional to 211,049.28, 291,247.92 and 115,555.92

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Solution

The fourth proportional to 211,049.28, 291,247.92 and 115,555.92 is: 159,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,049.28 : 291,247.92 = 115,555.92 : x
  2. Step 2: Convert to fraction form
    211,049.28/291,247.92 = 115,555.92/x
  3. Step 3: Cross multiply
    211,049.28x = 291,247.92 × 115,555.92
  4. Step 4: Simplify right side
    211,049.28x = 33,655,421,343.69
  5. Step 5: Solve for x
    x = 33,655,421,343.69/211,049.28
  6. Step 6: Final answer
    x = 159,467.12

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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.