Home / 221,943.75-306,283.46-121,341.75

Finding the Fourth Proportional to 221,943.75, 306,283.46 and 121,341.75

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Solution

The fourth proportional to 221,943.75, 306,283.46 and 121,341.75 is: 167,452.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,943.75 : 306,283.46 = 121,341.75 : x
  2. Step 2: Convert to fraction form
    221,943.75/306,283.46 = 121,341.75/x
  3. Step 3: Cross multiply
    221,943.75x = 306,283.46 × 121,341.75
  4. Step 4: Simplify right side
    221,943.75x = 37,164,970,425.75
  5. Step 5: Solve for x
    x = 37,164,970,425.75/221,943.75
  6. Step 6: Final answer
    x = 167,452.21

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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.