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Finding the Fourth Proportional to 264.69, 395.51 and 210.02

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Solution

The fourth proportional to 264.69, 395.51 and 210.02 is: 313.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.69 : 395.51 = 210.02 : x
  2. Step 2: Convert to fraction form
    264.69/395.51 = 210.02/x
  3. Step 3: Cross multiply
    264.69x = 395.51 × 210.02
  4. Step 4: Simplify right side
    264.69x = 83,061.98
  5. Step 5: Solve for x
    x = 83,061.98/264.69
  6. Step 6: Final answer
    x = 313.81

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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.