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Finding the Fourth Proportional to 264.45, 395.00 and 210.18

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Solution

The fourth proportional to 264.45, 395.00 and 210.18 is: 313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.45 : 395.00 = 210.18 : x
  2. Step 2: Convert to fraction form
    264.45/395.00 = 210.18/x
  3. Step 3: Cross multiply
    264.45x = 395.00 × 210.18
  4. Step 4: Simplify right side
    264.45x = 83,021.63
  5. Step 5: Solve for x
    x = 83,021.63/264.45
  6. Step 6: Final answer
    x = 313.94

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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.