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Finding the Fourth Proportional to 1,495.42, 2,243.11 and 384.83

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Solution

The fourth proportional to 1,495.42, 2,243.11 and 384.83 is: 577.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.42 : 2,243.11 = 384.83 : x
  2. Step 2: Convert to fraction form
    1,495.42/2,243.11 = 384.83/x
  3. Step 3: Cross multiply
    1,495.42x = 2,243.11 × 384.83
  4. Step 4: Simplify right side
    1,495.42x = 863,216.02
  5. Step 5: Solve for x
    x = 863,216.02/1,495.42
  6. Step 6: Final answer
    x = 577.24

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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.