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Finding the Fourth Proportional to 631.08, 941.67 and 558.18

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Solution

The fourth proportional to 631.08, 941.67 and 558.18 is: 832.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.08 : 941.67 = 558.18 : x
  2. Step 2: Convert to fraction form
    631.08/941.67 = 558.18/x
  3. Step 3: Cross multiply
    631.08x = 941.67 × 558.18
  4. Step 4: Simplify right side
    631.08x = 525,621.36
  5. Step 5: Solve for x
    x = 525,621.36/631.08
  6. Step 6: Final answer
    x = 832.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.