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Finding the Fourth Proportional to 503.88, 693.90 and 348.36

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Solution

The fourth proportional to 503.88, 693.90 and 348.36 is: 479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.88 : 693.90 = 348.36 : x
  2. Step 2: Convert to fraction form
    503.88/693.90 = 348.36/x
  3. Step 3: Cross multiply
    503.88x = 693.90 × 348.36
  4. Step 4: Simplify right side
    503.88x = 241,727.00
  5. Step 5: Solve for x
    x = 241,727.00/503.88
  6. Step 6: Final answer
    x = 479.73

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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.