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Finding the Fourth Proportional to 624.01, 935.98 and 258.79

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Solution

The fourth proportional to 624.01, 935.98 and 258.79 is: 388.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.01 : 935.98 = 258.79 : x
  2. Step 2: Convert to fraction form
    624.01/935.98 = 258.79/x
  3. Step 3: Cross multiply
    624.01x = 935.98 × 258.79
  4. Step 4: Simplify right side
    624.01x = 242,222.26
  5. Step 5: Solve for x
    x = 242,222.26/624.01
  6. Step 6: Final answer
    x = 388.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.