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Finding the Fourth Proportional to 313.30, 469.05 and 304.30

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Solution

The fourth proportional to 313.30, 469.05 and 304.30 is: 455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.30 : 469.05 = 304.30 : x
  2. Step 2: Convert to fraction form
    313.30/469.05 = 304.30/x
  3. Step 3: Cross multiply
    313.30x = 469.05 × 304.30
  4. Step 4: Simplify right side
    313.30x = 142,731.92
  5. Step 5: Solve for x
    x = 142,731.92/313.30
  6. Step 6: Final answer
    x = 455.58

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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.