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Finding the Fourth Proportional to 374.13, 560.30 and 330.35

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Solution

The fourth proportional to 374.13, 560.30 and 330.35 is: 494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.13 : 560.30 = 330.35 : x
  2. Step 2: Convert to fraction form
    374.13/560.30 = 330.35/x
  3. Step 3: Cross multiply
    374.13x = 560.30 × 330.35
  4. Step 4: Simplify right side
    374.13x = 185,090.65
  5. Step 5: Solve for x
    x = 185,090.65/374.13
  6. Step 6: Final answer
    x = 494.72

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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.