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Finding the Fourth Proportional to 222,300.86, 306,804.39 and 126,785.66

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Solution

The fourth proportional to 222,300.86, 306,804.39 and 126,785.66 is: 174,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,300.86 : 306,804.39 = 126,785.66 : x
  2. Step 2: Convert to fraction form
    222,300.86/306,804.39 = 126,785.66/x
  3. Step 3: Cross multiply
    222,300.86x = 306,804.39 × 126,785.66
  4. Step 4: Simplify right side
    222,300.86x = 38,898,397,077.05
  5. Step 5: Solve for x
    x = 38,898,397,077.05/222,300.86
  6. Step 6: Final answer
    x = 174,980.87

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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.