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Finding the Fourth Proportional to 223,371.34, 308,324.28 and 143,015.30

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Solution

The fourth proportional to 223,371.34, 308,324.28 and 143,015.30 is: 197,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,371.34 : 308,324.28 = 143,015.30 : x
  2. Step 2: Convert to fraction form
    223,371.34/308,324.28 = 143,015.30/x
  3. Step 3: Cross multiply
    223,371.34x = 308,324.28 × 143,015.30
  4. Step 4: Simplify right side
    223,371.34x = 44,095,089,401.48
  5. Step 5: Solve for x
    x = 44,095,089,401.48/223,371.34
  6. Step 6: Final answer
    x = 197,407.10

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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.