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Finding the Fourth Proportional to 518,584, 777,876 and 168,376

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Solution

The fourth proportional to 518,584, 777,876 and 168,376 is: 252,564

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,584 : 777,876 = 168,376 : x
  2. Step 2: Convert to fraction form
    518,584/777,876 = 168,376/x
  3. Step 3: Cross multiply
    518,584x = 777,876 × 168,376
  4. Step 4: Simplify right side
    518,584x = 130,975,649,376
  5. Step 5: Solve for x
    x = 130,975,649,376/518,584
  6. Step 6: Final answer
    x = 252,564

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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.