Home / 300,869.53-415,219.31-166,742.17

Finding the Fourth Proportional to 300,869.53, 415,219.31 and 166,742.17

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Solution

The fourth proportional to 300,869.53, 415,219.31 and 166,742.17 is: 230,114.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,869.53 : 415,219.31 = 166,742.17 : x
  2. Step 2: Convert to fraction form
    300,869.53/415,219.31 = 166,742.17/x
  3. Step 3: Cross multiply
    300,869.53x = 415,219.31 × 166,742.17
  4. Step 4: Simplify right side
    300,869.53x = 69,234,567,941.59
  5. Step 5: Solve for x
    x = 69,234,567,941.59/300,869.53
  6. Step 6: Final answer
    x = 230,114.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.