Home / 211,179.45-291,448.54-120,549.05

Finding the Fourth Proportional to 211,179.45, 291,448.54 and 120,549.05

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Solution

The fourth proportional to 211,179.45, 291,448.54 and 120,549.05 is: 166,369.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,179.45 : 291,448.54 = 120,549.05 : x
  2. Step 2: Convert to fraction form
    211,179.45/291,448.54 = 120,549.05/x
  3. Step 3: Cross multiply
    211,179.45x = 291,448.54 × 120,549.05
  4. Step 4: Simplify right side
    211,179.45x = 35,133,844,620.89
  5. Step 5: Solve for x
    x = 35,133,844,620.89/211,179.45
  6. Step 6: Final answer
    x = 166,369.62

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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.