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Finding the Fourth Proportional to 473.75, 710.63 and 185.39

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Solution

The fourth proportional to 473.75, 710.63 and 185.39 is: 278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.75 : 710.63 = 185.39 : x
  2. Step 2: Convert to fraction form
    473.75/710.63 = 185.39/x
  3. Step 3: Cross multiply
    473.75x = 710.63 × 185.39
  4. Step 4: Simplify right side
    473.75x = 131,739.22
  5. Step 5: Solve for x
    x = 131,739.22/473.75
  6. Step 6: Final answer
    x = 278.08

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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.