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Finding the Fourth Proportional to 436.06, 601.59 and 288.64

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Solution

The fourth proportional to 436.06, 601.59 and 288.64 is: 398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.06 : 601.59 = 288.64 : x
  2. Step 2: Convert to fraction form
    436.06/601.59 = 288.64/x
  3. Step 3: Cross multiply
    436.06x = 601.59 × 288.64
  4. Step 4: Simplify right side
    436.06x = 173,642.94
  5. Step 5: Solve for x
    x = 173,642.94/436.06
  6. Step 6: Final answer
    x = 398.21

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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.