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Finding the Fourth Proportional to 221,955.78, 306,283.17 and 126,444.90

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Solution

The fourth proportional to 221,955.78, 306,283.17 and 126,444.90 is: 174,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,955.78 : 306,283.17 = 126,444.90 : x
  2. Step 2: Convert to fraction form
    221,955.78/306,283.17 = 126,444.90/x
  3. Step 3: Cross multiply
    221,955.78x = 306,283.17 × 126,444.90
  4. Step 4: Simplify right side
    221,955.78x = 38,727,944,802.33
  5. Step 5: Solve for x
    x = 38,727,944,802.33/221,955.78
  6. Step 6: Final answer
    x = 174,484.96

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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.