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Finding the Fourth Proportional to 501.63, 751.83 and 258.36

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Solution

The fourth proportional to 501.63, 751.83 and 258.36 is: 387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.63 : 751.83 = 258.36 : x
  2. Step 2: Convert to fraction form
    501.63/751.83 = 258.36/x
  3. Step 3: Cross multiply
    501.63x = 751.83 × 258.36
  4. Step 4: Simplify right side
    501.63x = 194,242.80
  5. Step 5: Solve for x
    x = 194,242.80/501.63
  6. Step 6: Final answer
    x = 387.22

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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.