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Finding the Fourth Proportional to 228,942.70, 343,414.05 and 216,040.30

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Solution

The fourth proportional to 228,942.70, 343,414.05 and 216,040.30 is: 324,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,942.70 : 343,414.05 = 216,040.30 : x
  2. Step 2: Convert to fraction form
    228,942.70/343,414.05 = 216,040.30/x
  3. Step 3: Cross multiply
    228,942.70x = 343,414.05 × 216,040.30
  4. Step 4: Simplify right side
    228,942.70x = 74,191,274,386.22
  5. Step 5: Solve for x
    x = 74,191,274,386.22/228,942.70
  6. Step 6: Final answer
    x = 324,060.45

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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.