Home / 222,621.39-307,217.49-122,019.39

Finding the Fourth Proportional to 222,621.39, 307,217.49 and 122,019.39

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Solution

The fourth proportional to 222,621.39, 307,217.49 and 122,019.39 is: 168,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,621.39 : 307,217.49 = 122,019.39 : x
  2. Step 2: Convert to fraction form
    222,621.39/307,217.49 = 122,019.39/x
  3. Step 3: Cross multiply
    222,621.39x = 307,217.49 × 122,019.39
  4. Step 4: Simplify right side
    222,621.39x = 37,486,490,727.13
  5. Step 5: Solve for x
    x = 37,486,490,727.13/222,621.39
  6. Step 6: Final answer
    x = 168,386.74

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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.