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Finding the Fourth Proportional to 315.01, 434.68 and 175.13

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Solution

The fourth proportional to 315.01, 434.68 and 175.13 is: 241.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.01 : 434.68 = 175.13 : x
  2. Step 2: Convert to fraction form
    315.01/434.68 = 175.13/x
  3. Step 3: Cross multiply
    315.01x = 434.68 × 175.13
  4. Step 4: Simplify right side
    315.01x = 76,125.51
  5. Step 5: Solve for x
    x = 76,125.51/315.01
  6. Step 6: Final answer
    x = 241.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.