Home / 211,178.45-291,447.16-120,548.05

Finding the Fourth Proportional to 211,178.45, 291,447.16 and 120,548.05

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Solution

The fourth proportional to 211,178.45, 291,447.16 and 120,548.05 is: 166,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,178.45 : 291,447.16 = 120,548.05 : x
  2. Step 2: Convert to fraction form
    211,178.45/291,447.16 = 120,548.05/x
  3. Step 3: Cross multiply
    211,178.45x = 291,447.16 × 120,548.05
  4. Step 4: Simplify right side
    211,178.45x = 35,133,385,786.05
  5. Step 5: Solve for x
    x = 35,133,385,786.05/211,178.45
  6. Step 6: Final answer
    x = 166,368.23

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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.