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Finding the Fourth Proportional to 500.58, 750.36 and 281.30

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Solution

The fourth proportional to 500.58, 750.36 and 281.30 is: 421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.58 : 750.36 = 281.30 : x
  2. Step 2: Convert to fraction form
    500.58/750.36 = 281.30/x
  3. Step 3: Cross multiply
    500.58x = 750.36 × 281.30
  4. Step 4: Simplify right side
    500.58x = 211,076.27
  5. Step 5: Solve for x
    x = 211,076.27/500.58
  6. Step 6: Final answer
    x = 421.66

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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.