Home / 222,009.18-306,368.10-121,407.18

Finding the Fourth Proportional to 222,009.18, 306,368.10 and 121,407.18

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Solution

The fourth proportional to 222,009.18, 306,368.10 and 121,407.18 is: 167,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,009.18 : 306,368.10 = 121,407.18 : x
  2. Step 2: Convert to fraction form
    222,009.18/306,368.10 = 121,407.18/x
  3. Step 3: Cross multiply
    222,009.18x = 306,368.10 × 121,407.18
  4. Step 4: Simplify right side
    222,009.18x = 37,195,287,062.96
  5. Step 5: Solve for x
    x = 37,195,287,062.96/222,009.18
  6. Step 6: Final answer
    x = 167,539.41

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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.