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Finding the Fourth Proportional to 617.94, 852.76 and 355.98

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Solution

The fourth proportional to 617.94, 852.76 and 355.98 is: 491.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.94 : 852.76 = 355.98 : x
  2. Step 2: Convert to fraction form
    617.94/852.76 = 355.98/x
  3. Step 3: Cross multiply
    617.94x = 852.76 × 355.98
  4. Step 4: Simplify right side
    617.94x = 303,565.50
  5. Step 5: Solve for x
    x = 303,565.50/617.94
  6. Step 6: Final answer
    x = 491.25

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