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Finding the Fourth Proportional to 488.87, 730.34 and 372.99

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Solution

The fourth proportional to 488.87, 730.34 and 372.99 is: 557.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.87 : 730.34 = 372.99 : x
  2. Step 2: Convert to fraction form
    488.87/730.34 = 372.99/x
  3. Step 3: Cross multiply
    488.87x = 730.34 × 372.99
  4. Step 4: Simplify right side
    488.87x = 272,407.65
  5. Step 5: Solve for x
    x = 272,407.65/488.87
  6. Step 6: Final answer
    x = 557.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.