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Finding the Fourth Proportional to 336.29, 503.35 and 259.47

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Solution

The fourth proportional to 336.29, 503.35 and 259.47 is: 388.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.29 : 503.35 = 259.47 : x
  2. Step 2: Convert to fraction form
    336.29/503.35 = 259.47/x
  3. Step 3: Cross multiply
    336.29x = 503.35 × 259.47
  4. Step 4: Simplify right side
    336.29x = 130,603.58
  5. Step 5: Solve for x
    x = 130,603.58/336.29
  6. Step 6: Final answer
    x = 388.37

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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.