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Finding the Fourth Proportional to 573.08, 858.68 and 514.96

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Solution

The fourth proportional to 573.08, 858.68 and 514.96 is: 771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.08 : 858.68 = 514.96 : x
  2. Step 2: Convert to fraction form
    573.08/858.68 = 514.96/x
  3. Step 3: Cross multiply
    573.08x = 858.68 × 514.96
  4. Step 4: Simplify right side
    573.08x = 442,185.85
  5. Step 5: Solve for x
    x = 442,185.85/573.08
  6. Step 6: Final answer
    x = 771.60

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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.