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Finding the Fourth Proportional to 601.65, 903.06 and 328.05

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Solution

The fourth proportional to 601.65, 903.06 and 328.05 is: 492.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.65 : 903.06 = 328.05 : x
  2. Step 2: Convert to fraction form
    601.65/903.06 = 328.05/x
  3. Step 3: Cross multiply
    601.65x = 903.06 × 328.05
  4. Step 4: Simplify right side
    601.65x = 296,248.83
  5. Step 5: Solve for x
    x = 296,248.83/601.65
  6. Step 6: Final answer
    x = 492.39

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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.