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Finding the Fourth Proportional to 1,014.87, 1,521.99 and 365.43

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Solution

The fourth proportional to 1,014.87, 1,521.99 and 365.43 is: 548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.87 : 1,521.99 = 365.43 : x
  2. Step 2: Convert to fraction form
    1,014.87/1,521.99 = 365.43/x
  3. Step 3: Cross multiply
    1,014.87x = 1,521.99 × 365.43
  4. Step 4: Simplify right side
    1,014.87x = 556,180.81
  5. Step 5: Solve for x
    x = 556,180.81/1,014.87
  6. Step 6: Final answer
    x = 548.03

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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.