Home / 221,972.34-306,323.01-121,370.34

Finding the Fourth Proportional to 221,972.34, 306,323.01 and 121,370.34

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Solution

The fourth proportional to 221,972.34, 306,323.01 and 121,370.34 is: 167,491.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,972.34 : 306,323.01 = 121,370.34 : x
  2. Step 2: Convert to fraction form
    221,972.34/306,323.01 = 121,370.34/x
  3. Step 3: Cross multiply
    221,972.34x = 306,323.01 × 121,370.34
  4. Step 4: Simplify right side
    221,972.34x = 37,178,527,873.52
  5. Step 5: Solve for x
    x = 37,178,527,873.52/221,972.34
  6. Step 6: Final answer
    x = 167,491.71

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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.