Home / 222,000.54-306,359.19-121,399.26

Finding the Fourth Proportional to 222,000.54, 306,359.19 and 121,399.26

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Solution

The fourth proportional to 222,000.54, 306,359.19 and 121,399.26 is: 167,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,000.54 : 306,359.19 = 121,399.26 : x
  2. Step 2: Convert to fraction form
    222,000.54/306,359.19 = 121,399.26/x
  3. Step 3: Cross multiply
    222,000.54x = 306,359.19 × 121,399.26
  4. Step 4: Simplify right side
    222,000.54x = 37,191,778,960.20
  5. Step 5: Solve for x
    x = 37,191,778,960.20/222,000.54
  6. Step 6: Final answer
    x = 167,530.13

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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.