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Finding the Fourth Proportional to 362.94, 501.30 and 313.80

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Solution

The fourth proportional to 362.94, 501.30 and 313.80 is: 433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.94 : 501.30 = 313.80 : x
  2. Step 2: Convert to fraction form
    362.94/501.30 = 313.80/x
  3. Step 3: Cross multiply
    362.94x = 501.30 × 313.80
  4. Step 4: Simplify right side
    362.94x = 157,307.94
  5. Step 5: Solve for x
    x = 157,307.94/362.94
  6. Step 6: Final answer
    x = 433.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.