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Finding the Fourth Proportional to 573.12, 790.98 and 377.08

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Solution

The fourth proportional to 573.12, 790.98 and 377.08 is: 520.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.12 : 790.98 = 377.08 : x
  2. Step 2: Convert to fraction form
    573.12/790.98 = 377.08/x
  3. Step 3: Cross multiply
    573.12x = 790.98 × 377.08
  4. Step 4: Simplify right side
    573.12x = 298,262.74
  5. Step 5: Solve for x
    x = 298,262.74/573.12
  6. Step 6: Final answer
    x = 520.42

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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.