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Finding the Fourth Proportional to 365.56, 504.78 and 345.08

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Solution

The fourth proportional to 365.56, 504.78 and 345.08 is: 476.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.56 : 504.78 = 345.08 : x
  2. Step 2: Convert to fraction form
    365.56/504.78 = 345.08/x
  3. Step 3: Cross multiply
    365.56x = 504.78 × 345.08
  4. Step 4: Simplify right side
    365.56x = 174,189.48
  5. Step 5: Solve for x
    x = 174,189.48/365.56
  6. Step 6: Final answer
    x = 476.50

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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.