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Finding the Fourth Proportional to 303.01, 415.60 and 288.83

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Solution

The fourth proportional to 303.01, 415.60 and 288.83 is: 396.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.01 : 415.60 = 288.83 : x
  2. Step 2: Convert to fraction form
    303.01/415.60 = 288.83/x
  3. Step 3: Cross multiply
    303.01x = 415.60 × 288.83
  4. Step 4: Simplify right side
    303.01x = 120,038.06
  5. Step 5: Solve for x
    x = 120,038.06/303.01
  6. Step 6: Final answer
    x = 396.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.