Home / 211,146.48-291,301.04-120,507.48

Finding the Fourth Proportional to 211,146.48, 291,301.04 and 120,507.48

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Solution

The fourth proportional to 211,146.48, 291,301.04 and 120,507.48 is: 166,254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,146.48 : 291,301.04 = 120,507.48 : x
  2. Step 2: Convert to fraction form
    211,146.48/291,301.04 = 120,507.48/x
  3. Step 3: Cross multiply
    211,146.48x = 291,301.04 × 120,507.48
  4. Step 4: Simplify right side
    211,146.48x = 35,103,954,251.78
  5. Step 5: Solve for x
    x = 35,103,954,251.78/211,146.48
  6. Step 6: Final answer
    x = 166,254.03

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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.