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Finding the Fourth Proportional to 374.49, 558.90 and 364.77

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Solution

The fourth proportional to 374.49, 558.90 and 364.77 is: 544.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.49 : 558.90 = 364.77 : x
  2. Step 2: Convert to fraction form
    374.49/558.90 = 364.77/x
  3. Step 3: Cross multiply
    374.49x = 558.90 × 364.77
  4. Step 4: Simplify right side
    374.49x = 203,869.95
  5. Step 5: Solve for x
    x = 203,869.95/374.49
  6. Step 6: Final answer
    x = 544.39

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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.