Home / 211,181.74-291,451.71-120,551.33

Finding the Fourth Proportional to 211,181.74, 291,451.71 and 120,551.33

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Solution

The fourth proportional to 211,181.74, 291,451.71 and 120,551.33 is: 166,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,181.74 : 291,451.71 = 120,551.33 : x
  2. Step 2: Convert to fraction form
    211,181.74/291,451.71 = 120,551.33/x
  3. Step 3: Cross multiply
    211,181.74x = 291,451.71 × 120,551.33
  4. Step 4: Simplify right side
    211,181.74x = 35,134,891,271.27
  5. Step 5: Solve for x
    x = 35,134,891,271.27/211,181.74
  6. Step 6: Final answer
    x = 166,372.77

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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.