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Finding the Fourth Proportional to 573.08, 790.63 and 351.95

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Solution

The fourth proportional to 573.08, 790.63 and 351.95 is: 485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.08 : 790.63 = 351.95 : x
  2. Step 2: Convert to fraction form
    573.08/790.63 = 351.95/x
  3. Step 3: Cross multiply
    573.08x = 790.63 × 351.95
  4. Step 4: Simplify right side
    573.08x = 278,257.40
  5. Step 5: Solve for x
    x = 278,257.40/573.08
  6. Step 6: Final answer
    x = 485.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.