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Finding the Fourth Proportional to 601.80, 903.06 and 259.80

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Solution

The fourth proportional to 601.80, 903.06 and 259.80 is: 389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.80 : 903.06 = 259.80 : x
  2. Step 2: Convert to fraction form
    601.80/903.06 = 259.80/x
  3. Step 3: Cross multiply
    601.80x = 903.06 × 259.80
  4. Step 4: Simplify right side
    601.80x = 234,611.43
  5. Step 5: Solve for x
    x = 234,611.43/601.80
  6. Step 6: Final answer
    x = 389.85

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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.