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Finding the Fourth Proportional to 246.48, 340.32 and 188.64

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Solution

The fourth proportional to 246.48, 340.32 and 188.64 is: 260.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.48 : 340.32 = 188.64 : x
  2. Step 2: Convert to fraction form
    246.48/340.32 = 188.64/x
  3. Step 3: Cross multiply
    246.48x = 340.32 × 188.64
  4. Step 4: Simplify right side
    246.48x = 64,197.96
  5. Step 5: Solve for x
    x = 64,197.96/246.48
  6. Step 6: Final answer
    x = 260.46

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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.