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Finding the Fourth Proportional to 595.50, 893.71 and 321.90

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Solution

The fourth proportional to 595.50, 893.71 and 321.90 is: 483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.50 : 893.71 = 321.90 : x
  2. Step 2: Convert to fraction form
    595.50/893.71 = 321.90/x
  3. Step 3: Cross multiply
    595.50x = 893.71 × 321.90
  4. Step 4: Simplify right side
    595.50x = 287,683.91
  5. Step 5: Solve for x
    x = 287,683.91/595.50
  6. Step 6: Final answer
    x = 483.09

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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.