Home / 211,181.50-291,451.37-120,551.08

Finding the Fourth Proportional to 211,181.50, 291,451.37 and 120,551.08

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Solution

The fourth proportional to 211,181.50, 291,451.37 and 120,551.08 is: 166,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,181.50 : 291,451.37 = 120,551.08 : x
  2. Step 2: Convert to fraction form
    211,181.50/291,451.37 = 120,551.08/x
  3. Step 3: Cross multiply
    211,181.50x = 291,451.37 × 120,551.08
  4. Step 4: Simplify right side
    211,181.50x = 35,134,776,089.60
  5. Step 5: Solve for x
    x = 35,134,776,089.60/211,181.50
  6. Step 6: Final answer
    x = 166,372.42

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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.