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Finding the Fourth Proportional to 228,304.95, 315,024.03 and 143,361.87

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Solution

The fourth proportional to 228,304.95, 315,024.03 and 143,361.87 is: 197,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,304.95 : 315,024.03 = 143,361.87 : x
  2. Step 2: Convert to fraction form
    228,304.95/315,024.03 = 143,361.87/x
  3. Step 3: Cross multiply
    228,304.95x = 315,024.03 × 143,361.87
  4. Step 4: Simplify right side
    228,304.95x = 45,162,434,035.74
  5. Step 5: Solve for x
    x = 45,162,434,035.74/228,304.95
  6. Step 6: Final answer
    x = 197,816.27

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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.