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Finding the Fourth Proportional to 365.36, 503.91 and 291.50

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Solution

The fourth proportional to 365.36, 503.91 and 291.50 is: 402.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.36 : 503.91 = 291.50 : x
  2. Step 2: Convert to fraction form
    365.36/503.91 = 291.50/x
  3. Step 3: Cross multiply
    365.36x = 503.91 × 291.50
  4. Step 4: Simplify right side
    365.36x = 146,889.77
  5. Step 5: Solve for x
    x = 146,889.77/365.36
  6. Step 6: Final answer
    x = 402.04

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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.