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Finding the Fourth Proportional to 503.10, 695.81 and 450.54

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Solution

The fourth proportional to 503.10, 695.81 and 450.54 is: 623.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.10 : 695.81 = 450.54 : x
  2. Step 2: Convert to fraction form
    503.10/695.81 = 450.54/x
  3. Step 3: Cross multiply
    503.10x = 695.81 × 450.54
  4. Step 4: Simplify right side
    503.10x = 313,487.98
  5. Step 5: Solve for x
    x = 313,487.98/503.10
  6. Step 6: Final answer
    x = 623.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.