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Finding the Fourth Proportional to 374.51, 561.06 and 336.47

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Solution

The fourth proportional to 374.51, 561.06 and 336.47 is: 504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.51 : 561.06 = 336.47 : x
  2. Step 2: Convert to fraction form
    374.51/561.06 = 336.47/x
  3. Step 3: Cross multiply
    374.51x = 561.06 × 336.47
  4. Step 4: Simplify right side
    374.51x = 188,777.05
  5. Step 5: Solve for x
    x = 188,777.05/374.51
  6. Step 6: Final answer
    x = 504.07

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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.