Home / 222,209.22-306,688.64-125,442.57

Finding the Fourth Proportional to 222,209.22, 306,688.64 and 125,442.57

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Solution

The fourth proportional to 222,209.22, 306,688.64 and 125,442.57 is: 173,133.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,209.22 : 306,688.64 = 125,442.57 : x
  2. Step 2: Convert to fraction form
    222,209.22/306,688.64 = 125,442.57/x
  3. Step 3: Cross multiply
    222,209.22x = 306,688.64 × 125,442.57
  4. Step 4: Simplify right side
    222,209.22x = 38,471,810,564.19
  5. Step 5: Solve for x
    x = 38,471,810,564.19/222,209.22
  6. Step 6: Final answer
    x = 173,133.28

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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.