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Finding the Fourth Proportional to 501.14, 751.68 and 284.72

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Solution

The fourth proportional to 501.14, 751.68 and 284.72 is: 427.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.14 : 751.68 = 284.72 : x
  2. Step 2: Convert to fraction form
    501.14/751.68 = 284.72/x
  3. Step 3: Cross multiply
    501.14x = 751.68 × 284.72
  4. Step 4: Simplify right side
    501.14x = 214,018.33
  5. Step 5: Solve for x
    x = 214,018.33/501.14
  6. Step 6: Final answer
    x = 427.06

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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.