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Finding the Fourth Proportional to 555.03, 828 and 468.90

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Solution

The fourth proportional to 555.03, 828 and 468.90 is: 699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.03 : 828 = 468.90 : x
  2. Step 2: Convert to fraction form
    555.03/828 = 468.90/x
  3. Step 3: Cross multiply
    555.03x = 828 × 468.90
  4. Step 4: Simplify right side
    555.03x = 388,249.20
  5. Step 5: Solve for x
    x = 388,249.20/555.03
  6. Step 6: Final answer
    x = 699.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.