Home / 222,416-306,934.08-121,817.60

Finding the Fourth Proportional to 222,416, 306,934.08 and 121,817.60

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Solution

The fourth proportional to 222,416, 306,934.08 and 121,817.60 is: 168,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,416 : 306,934.08 = 121,817.60 : x
  2. Step 2: Convert to fraction form
    222,416/306,934.08 = 121,817.60/x
  3. Step 3: Cross multiply
    222,416x = 306,934.08 × 121,817.60
  4. Step 4: Simplify right side
    222,416x = 37,389,972,983.81
  5. Step 5: Solve for x
    x = 37,389,972,983.81/222,416
  6. Step 6: Final answer
    x = 168,108.29

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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.