Home / 211,032.09-291,213.22-115,520.49

Finding the Fourth Proportional to 211,032.09, 291,213.22 and 115,520.49

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Solution

The fourth proportional to 211,032.09, 291,213.22 and 115,520.49 is: 159,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,032.09 : 291,213.22 = 115,520.49 : x
  2. Step 2: Convert to fraction form
    211,032.09/291,213.22 = 115,520.49/x
  3. Step 3: Cross multiply
    211,032.09x = 291,213.22 × 115,520.49
  4. Step 4: Simplify right side
    211,032.09x = 33,641,093,868.88
  5. Step 5: Solve for x
    x = 33,641,093,868.88/211,032.09
  6. Step 6: Final answer
    x = 159,412.22

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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.