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Finding the Fourth Proportional to 351,200.48, 484,478.03 and 213,342.78

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Solution

The fourth proportional to 351,200.48, 484,478.03 and 213,342.78 is: 294,304.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,200.48 : 484,478.03 = 213,342.78 : x
  2. Step 2: Convert to fraction form
    351,200.48/484,478.03 = 213,342.78/x
  3. Step 3: Cross multiply
    351,200.48x = 484,478.03 × 213,342.78
  4. Step 4: Simplify right side
    351,200.48x = 103,359,890,302.48
  5. Step 5: Solve for x
    x = 103,359,890,302.48/351,200.48
  6. Step 6: Final answer
    x = 294,304.53

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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.