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Finding the Fourth Proportional to 343,661.32, 515,232.76 and 225,362.44

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Solution

The fourth proportional to 343,661.32, 515,232.76 and 225,362.44 is: 337,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,661.32 : 515,232.76 = 225,362.44 : x
  2. Step 2: Convert to fraction form
    343,661.32/515,232.76 = 225,362.44/x
  3. Step 3: Cross multiply
    343,661.32x = 515,232.76 × 225,362.44
  4. Step 4: Simplify right side
    343,661.32x = 116,114,111,961.53
  5. Step 5: Solve for x
    x = 116,114,111,961.53/343,661.32
  6. Step 6: Final answer
    x = 337,873.67

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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.