Home / 222,019.18-306,381.90-121,417.18

Finding the Fourth Proportional to 222,019.18, 306,381.90 and 121,417.18

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Solution

The fourth proportional to 222,019.18, 306,381.90 and 121,417.18 is: 167,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,019.18 : 306,381.90 = 121,417.18 : x
  2. Step 2: Convert to fraction form
    222,019.18/306,381.90 = 121,417.18/x
  3. Step 3: Cross multiply
    222,019.18x = 306,381.90 × 121,417.18
  4. Step 4: Simplify right side
    222,019.18x = 37,200,026,301.04
  5. Step 5: Solve for x
    x = 37,200,026,301.04/222,019.18
  6. Step 6: Final answer
    x = 167,553.21

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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.