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Finding the Fourth Proportional to 336.28, 503.56 and 305.50

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Solution

The fourth proportional to 336.28, 503.56 and 305.50 is: 457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.28 : 503.56 = 305.50 : x
  2. Step 2: Convert to fraction form
    336.28/503.56 = 305.50/x
  3. Step 3: Cross multiply
    336.28x = 503.56 × 305.50
  4. Step 4: Simplify right side
    336.28x = 153,837.58
  5. Step 5: Solve for x
    x = 153,837.58/336.28
  6. Step 6: Final answer
    x = 457.47

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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.