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Finding the Fourth Proportional to 445.02, 670.12 and 330.27

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Solution

The fourth proportional to 445.02, 670.12 and 330.27 is: 497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.02 : 670.12 = 330.27 : x
  2. Step 2: Convert to fraction form
    445.02/670.12 = 330.27/x
  3. Step 3: Cross multiply
    445.02x = 670.12 × 330.27
  4. Step 4: Simplify right side
    445.02x = 221,320.53
  5. Step 5: Solve for x
    x = 221,320.53/445.02
  6. Step 6: Final answer
    x = 497.33

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Find fourth proportional to 222.51, 335.06 and 165.14
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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.