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Finding the Fourth Proportional to 656.06, 984.27 and 290.77

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Solution

The fourth proportional to 656.06, 984.27 and 290.77 is: 436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    656.06 : 984.27 = 290.77 : x
  2. Step 2: Convert to fraction form
    656.06/984.27 = 290.77/x
  3. Step 3: Cross multiply
    656.06x = 984.27 × 290.77
  4. Step 4: Simplify right side
    656.06x = 286,192.64
  5. Step 5: Solve for x
    x = 286,192.64/656.06
  6. Step 6: Final answer
    x = 436.23

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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.