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Finding the Fourth Proportional to 221,747.94, 306,012.48 and 126,254.72

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Solution

The fourth proportional to 221,747.94, 306,012.48 and 126,254.72 is: 174,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,747.94 : 306,012.48 = 126,254.72 : x
  2. Step 2: Convert to fraction form
    221,747.94/306,012.48 = 126,254.72/x
  3. Step 3: Cross multiply
    221,747.94x = 306,012.48 × 126,254.72
  4. Step 4: Simplify right side
    221,747.94x = 38,635,518,448.84
  5. Step 5: Solve for x
    x = 38,635,518,448.84/221,747.94
  6. Step 6: Final answer
    x = 174,231.69

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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.