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Finding the Fourth Proportional to 594.18, 891.54 and 319.98

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Solution

The fourth proportional to 594.18, 891.54 and 319.98 is: 480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.18 : 891.54 = 319.98 : x
  2. Step 2: Convert to fraction form
    594.18/891.54 = 319.98/x
  3. Step 3: Cross multiply
    594.18x = 891.54 × 319.98
  4. Step 4: Simplify right side
    594.18x = 285,274.97
  5. Step 5: Solve for x
    x = 285,274.97/594.18
  6. Step 6: Final answer
    x = 480.12

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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.