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Finding the Fourth Proportional to 338.07, 507.02 and 228.32

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Solution

The fourth proportional to 338.07, 507.02 and 228.32 is: 342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.07 : 507.02 = 228.32 : x
  2. Step 2: Convert to fraction form
    338.07/507.02 = 228.32/x
  3. Step 3: Cross multiply
    338.07x = 507.02 × 228.32
  4. Step 4: Simplify right side
    338.07x = 115,762.81
  5. Step 5: Solve for x
    x = 115,762.81/338.07
  6. Step 6: Final answer
    x = 342.42

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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.