Home / 211,131.90-291,335.40-168,220.26

Finding the Fourth Proportional to 211,131.90, 291,335.40 and 168,220.26

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Solution

The fourth proportional to 211,131.90, 291,335.40 and 168,220.26 is: 232,122.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,131.90 : 291,335.40 = 168,220.26 : x
  2. Step 2: Convert to fraction form
    211,131.90/291,335.40 = 168,220.26/x
  3. Step 3: Cross multiply
    211,131.90x = 291,335.40 × 168,220.26
  4. Step 4: Simplify right side
    211,131.90x = 49,008,516,735.20
  5. Step 5: Solve for x
    x = 49,008,516,735.20/211,131.90
  6. Step 6: Final answer
    x = 232,122.75

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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.