Home / 221,268.02-305,398.23-140,679.81

Finding the Fourth Proportional to 221,268.02, 305,398.23 and 140,679.81

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Solution

The fourth proportional to 221,268.02, 305,398.23 and 140,679.81 is: 194,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,268.02 : 305,398.23 = 140,679.81 : x
  2. Step 2: Convert to fraction form
    221,268.02/305,398.23 = 140,679.81/x
  3. Step 3: Cross multiply
    221,268.02x = 305,398.23 × 140,679.81
  4. Step 4: Simplify right side
    221,268.02x = 42,963,363,825.49
  5. Step 5: Solve for x
    x = 42,963,363,825.49/221,268.02
  6. Step 6: Final answer
    x = 194,168.88

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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.