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Finding the Fourth Proportional to 458.63, 632.75 and 259.43

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Solution

The fourth proportional to 458.63, 632.75 and 259.43 is: 357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.63 : 632.75 = 259.43 : x
  2. Step 2: Convert to fraction form
    458.63/632.75 = 259.43/x
  3. Step 3: Cross multiply
    458.63x = 632.75 × 259.43
  4. Step 4: Simplify right side
    458.63x = 164,157.26
  5. Step 5: Solve for x
    x = 164,157.26/458.63
  6. Step 6: Final answer
    x = 357.93

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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.