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Finding the Fourth Proportional to 518,588, 777,882 and 168,380

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Solution

The fourth proportional to 518,588, 777,882 and 168,380 is: 252,570

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,588 : 777,882 = 168,380 : x
  2. Step 2: Convert to fraction form
    518,588/777,882 = 168,380/x
  3. Step 3: Cross multiply
    518,588x = 777,882 × 168,380
  4. Step 4: Simplify right side
    518,588x = 130,979,771,160
  5. Step 5: Solve for x
    x = 130,979,771,160/518,588
  6. Step 6: Final answer
    x = 252,570

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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.