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Finding the Fourth Proportional to 504.63, 756.34 and 321.98

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Solution

The fourth proportional to 504.63, 756.34 and 321.98 is: 482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.63 : 756.34 = 321.98 : x
  2. Step 2: Convert to fraction form
    504.63/756.34 = 321.98/x
  3. Step 3: Cross multiply
    504.63x = 756.34 × 321.98
  4. Step 4: Simplify right side
    504.63x = 243,521.77
  5. Step 5: Solve for x
    x = 243,521.77/504.63
  6. Step 6: Final answer
    x = 482.57

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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.