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Finding the Fourth Proportional to 557.41, 835.57 and 313.41

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Solution

The fourth proportional to 557.41, 835.57 and 313.41 is: 469.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.41 : 835.57 = 313.41 : x
  2. Step 2: Convert to fraction form
    557.41/835.57 = 313.41/x
  3. Step 3: Cross multiply
    557.41x = 835.57 × 313.41
  4. Step 4: Simplify right side
    557.41x = 261,875.99
  5. Step 5: Solve for x
    x = 261,875.99/557.41
  6. Step 6: Final answer
    x = 469.81

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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.