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Finding the Fourth Proportional to 505.60, 697.92 and 364

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Solution

The fourth proportional to 505.60, 697.92 and 364 is: 502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.60 : 697.92 = 364 : x
  2. Step 2: Convert to fraction form
    505.60/697.92 = 364/x
  3. Step 3: Cross multiply
    505.60x = 697.92 × 364
  4. Step 4: Simplify right side
    505.60x = 254,042.88
  5. Step 5: Solve for x
    x = 254,042.88/505.60
  6. Step 6: Final answer
    x = 502.46

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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.