Home / 221,945.04-306,285.20-121,343.04

Finding the Fourth Proportional to 221,945.04, 306,285.20 and 121,343.04

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Solution

The fourth proportional to 221,945.04, 306,285.20 and 121,343.04 is: 167,453.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,945.04 : 306,285.20 = 121,343.04 : x
  2. Step 2: Convert to fraction form
    221,945.04/306,285.20 = 121,343.04/x
  3. Step 3: Cross multiply
    221,945.04x = 306,285.20 × 121,343.04
  4. Step 4: Simplify right side
    221,945.04x = 37,165,577,275.01
  5. Step 5: Solve for x
    x = 37,165,577,275.01/221,945.04
  6. Step 6: Final answer
    x = 167,453.97

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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.