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Finding the Fourth Proportional to 304.72, 456.15 and 246.40

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Solution

The fourth proportional to 304.72, 456.15 and 246.40 is: 368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.72 : 456.15 = 246.40 : x
  2. Step 2: Convert to fraction form
    304.72/456.15 = 246.40/x
  3. Step 3: Cross multiply
    304.72x = 456.15 × 246.40
  4. Step 4: Simplify right side
    304.72x = 112,395.36
  5. Step 5: Solve for x
    x = 112,395.36/304.72
  6. Step 6: Final answer
    x = 368.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.