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Finding the Fourth Proportional to 456.60, 683.64 and 293.88

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Solution

The fourth proportional to 456.60, 683.64 and 293.88 is: 440.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.60 : 683.64 = 293.88 : x
  2. Step 2: Convert to fraction form
    456.60/683.64 = 293.88/x
  3. Step 3: Cross multiply
    456.60x = 683.64 × 293.88
  4. Step 4: Simplify right side
    456.60x = 200,908.12
  5. Step 5: Solve for x
    x = 200,908.12/456.60
  6. Step 6: Final answer
    x = 440.01

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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.