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Finding the Fourth Proportional to 367,626.90, 551,440.35 and 209,871.30

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Solution

The fourth proportional to 367,626.90, 551,440.35 and 209,871.30 is: 314,806.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,626.90 : 551,440.35 = 209,871.30 : x
  2. Step 2: Convert to fraction form
    367,626.90/551,440.35 = 209,871.30/x
  3. Step 3: Cross multiply
    367,626.90x = 551,440.35 × 209,871.30
  4. Step 4: Simplify right side
    367,626.90x = 115,731,503,126.96
  5. Step 5: Solve for x
    x = 115,731,503,126.96/367,626.90
  6. Step 6: Final answer
    x = 314,806.95

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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.