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Finding the Fourth Proportional to 637.93, 957.12 and 313.48

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Solution

The fourth proportional to 637.93, 957.12 and 313.48 is: 470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.93 : 957.12 = 313.48 : x
  2. Step 2: Convert to fraction form
    637.93/957.12 = 313.48/x
  3. Step 3: Cross multiply
    637.93x = 957.12 × 313.48
  4. Step 4: Simplify right side
    637.93x = 300,037.98
  5. Step 5: Solve for x
    x = 300,037.98/637.93
  6. Step 6: Final answer
    x = 470.33

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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.