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Finding the Fourth Proportional to 503.00, 753.66 and 319.98

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Solution

The fourth proportional to 503.00, 753.66 and 319.98 is: 479.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.00 : 753.66 = 319.98 : x
  2. Step 2: Convert to fraction form
    503.00/753.66 = 319.98/x
  3. Step 3: Cross multiply
    503.00x = 753.66 × 319.98
  4. Step 4: Simplify right side
    503.00x = 241,156.13
  5. Step 5: Solve for x
    x = 241,156.13/503.00
  6. Step 6: Final answer
    x = 479.44

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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.