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Finding the Fourth Proportional to 506.83, 760.55 and 275.72

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Solution

The fourth proportional to 506.83, 760.55 and 275.72 is: 413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.83 : 760.55 = 275.72 : x
  2. Step 2: Convert to fraction form
    506.83/760.55 = 275.72/x
  3. Step 3: Cross multiply
    506.83x = 760.55 × 275.72
  4. Step 4: Simplify right side
    506.83x = 209,697.47
  5. Step 5: Solve for x
    x = 209,697.47/506.83
  6. Step 6: Final answer
    x = 413.74

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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.