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Finding the Fourth Proportional to 505.30, 696.36 and 365.14

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Solution

The fourth proportional to 505.30, 696.36 and 365.14 is: 503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.30 : 696.36 = 365.14 : x
  2. Step 2: Convert to fraction form
    505.30/696.36 = 365.14/x
  3. Step 3: Cross multiply
    505.30x = 696.36 × 365.14
  4. Step 4: Simplify right side
    505.30x = 254,268.89
  5. Step 5: Solve for x
    x = 254,268.89/505.30
  6. Step 6: Final answer
    x = 503.20

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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.