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Finding the Fourth Proportional to 367,490, 551,235 and 118,172

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Solution

The fourth proportional to 367,490, 551,235 and 118,172 is: 177,258

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,490 : 551,235 = 118,172 : x
  2. Step 2: Convert to fraction form
    367,490/551,235 = 118,172/x
  3. Step 3: Cross multiply
    367,490x = 551,235 × 118,172
  4. Step 4: Simplify right side
    367,490x = 65,140,542,420
  5. Step 5: Solve for x
    x = 65,140,542,420/367,490
  6. Step 6: Final answer
    x = 177,258

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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.