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Finding the Fourth Proportional to 229,052.35, 315,885.27 and 143,019.28

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Solution

The fourth proportional to 229,052.35, 315,885.27 and 143,019.28 is: 197,237.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,052.35 : 315,885.27 = 143,019.28 : x
  2. Step 2: Convert to fraction form
    229,052.35/315,885.27 = 143,019.28/x
  3. Step 3: Cross multiply
    229,052.35x = 315,885.27 × 143,019.28
  4. Step 4: Simplify right side
    229,052.35x = 45,177,683,878.01
  5. Step 5: Solve for x
    x = 45,177,683,878.01/229,052.35
  6. Step 6: Final answer
    x = 197,237.37

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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.