Home / 222,032.22-306,398.19-121,428.06

Finding the Fourth Proportional to 222,032.22, 306,398.19 and 121,428.06

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Solution

The fourth proportional to 222,032.22, 306,398.19 and 121,428.06 is: 167,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,032.22 : 306,398.19 = 121,428.06 : x
  2. Step 2: Convert to fraction form
    222,032.22/306,398.19 = 121,428.06/x
  3. Step 3: Cross multiply
    222,032.22x = 306,398.19 × 121,428.06
  4. Step 4: Simplify right side
    222,032.22x = 37,205,337,799.21
  5. Step 5: Solve for x
    x = 37,205,337,799.21/222,032.22
  6. Step 6: Final answer
    x = 167,567.29

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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.