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Finding the Fourth Proportional to 450.33, 671.93 and 418.92

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Solution

The fourth proportional to 450.33, 671.93 and 418.92 is: 625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.33 : 671.93 = 418.92 : x
  2. Step 2: Convert to fraction form
    450.33/671.93 = 418.92/x
  3. Step 3: Cross multiply
    450.33x = 671.93 × 418.92
  4. Step 4: Simplify right side
    450.33x = 281,482.82
  5. Step 5: Solve for x
    x = 281,482.82/450.33
  6. Step 6: Final answer
    x = 625.06

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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.