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Finding the Fourth Proportional to 473.86, 653.52 and 316.37

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Solution

The fourth proportional to 473.86, 653.52 and 316.37 is: 436.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.86 : 653.52 = 316.37 : x
  2. Step 2: Convert to fraction form
    473.86/653.52 = 316.37/x
  3. Step 3: Cross multiply
    473.86x = 653.52 × 316.37
  4. Step 4: Simplify right side
    473.86x = 206,751.49
  5. Step 5: Solve for x
    x = 206,751.49/473.86
  6. Step 6: Final answer
    x = 436.31

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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.