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Finding the Fourth Proportional to 314.12, 469.45 and 236.36

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Solution

The fourth proportional to 314.12, 469.45 and 236.36 is: 353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.12 : 469.45 = 236.36 : x
  2. Step 2: Convert to fraction form
    314.12/469.45 = 236.36/x
  3. Step 3: Cross multiply
    314.12x = 469.45 × 236.36
  4. Step 4: Simplify right side
    314.12x = 110,959.20
  5. Step 5: Solve for x
    x = 110,959.20/314.12
  6. Step 6: Final answer
    x = 353.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.