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Finding the Fourth Proportional to 293.65, 405.03 and 188.69

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Solution

The fourth proportional to 293.65, 405.03 and 188.69 is: 260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    293.65 : 405.03 = 188.69 : x
  2. Step 2: Convert to fraction form
    293.65/405.03 = 188.69/x
  3. Step 3: Cross multiply
    293.65x = 405.03 × 188.69
  4. Step 4: Simplify right side
    293.65x = 76,423.34
  5. Step 5: Solve for x
    x = 76,423.34/293.65
  6. Step 6: Final answer
    x = 260.25

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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.