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Finding the Fourth Proportional to 304.02, 456.06 and 87.60

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Solution

The fourth proportional to 304.02, 456.06 and 87.60 is: 131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.02 : 456.06 = 87.60 : x
  2. Step 2: Convert to fraction form
    304.02/456.06 = 87.60/x
  3. Step 3: Cross multiply
    304.02x = 456.06 × 87.60
  4. Step 4: Simplify right side
    304.02x = 39,950.86
  5. Step 5: Solve for x
    x = 39,950.86/304.02
  6. Step 6: Final answer
    x = 131.41

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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.