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Finding the Fourth Proportional to 637.49, 955.62 and 313.08

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Solution

The fourth proportional to 637.49, 955.62 and 313.08 is: 469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.49 : 955.62 = 313.08 : x
  2. Step 2: Convert to fraction form
    637.49/955.62 = 313.08/x
  3. Step 3: Cross multiply
    637.49x = 955.62 × 313.08
  4. Step 4: Simplify right side
    637.49x = 299,185.51
  5. Step 5: Solve for x
    x = 299,185.51/637.49
  6. Step 6: Final answer
    x = 469.32

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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.