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Finding the Fourth Proportional to 436.93, 603.19 and 297.79

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Solution

The fourth proportional to 436.93, 603.19 and 297.79 is: 411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.93 : 603.19 = 297.79 : x
  2. Step 2: Convert to fraction form
    436.93/603.19 = 297.79/x
  3. Step 3: Cross multiply
    436.93x = 603.19 × 297.79
  4. Step 4: Simplify right side
    436.93x = 179,623.95
  5. Step 5: Solve for x
    x = 179,623.95/436.93
  6. Step 6: Final answer
    x = 411.10

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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.