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Finding the Fourth Proportional to 203,154.78, 304,728.92 and 68,228.22

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Solution

The fourth proportional to 203,154.78, 304,728.92 and 68,228.22 is: 102,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,154.78 : 304,728.92 = 68,228.22 : x
  2. Step 2: Convert to fraction form
    203,154.78/304,728.92 = 68,228.22/x
  3. Step 3: Cross multiply
    203,154.78x = 304,728.92 × 68,228.22
  4. Step 4: Simplify right side
    203,154.78x = 20,791,111,794.12
  5. Step 5: Solve for x
    x = 20,791,111,794.12/203,154.78
  6. Step 6: Final answer
    x = 102,341.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.