Home / 211,217.69-291,469.26-120,570.05

Finding the Fourth Proportional to 211,217.69, 291,469.26 and 120,570.05

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Solution

The fourth proportional to 211,217.69, 291,469.26 and 120,570.05 is: 166,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,217.69 : 291,469.26 = 120,570.05 : x
  2. Step 2: Convert to fraction form
    211,217.69/291,469.26 = 120,570.05/x
  3. Step 3: Cross multiply
    211,217.69x = 291,469.26 × 120,570.05
  4. Step 4: Simplify right side
    211,217.69x = 35,142,461,191.47
  5. Step 5: Solve for x
    x = 35,142,461,191.47/211,217.69
  6. Step 6: Final answer
    x = 166,380.30

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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.