Home / 400,817.02-553,136.44-228,731.56

Finding the Fourth Proportional to 400,817.02, 553,136.44 and 228,731.56

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Solution

The fourth proportional to 400,817.02, 553,136.44 and 228,731.56 is: 315,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,817.02 : 553,136.44 = 228,731.56 : x
  2. Step 2: Convert to fraction form
    400,817.02/553,136.44 = 228,731.56/x
  3. Step 3: Cross multiply
    400,817.02x = 553,136.44 × 228,731.56
  4. Step 4: Simplify right side
    400,817.02x = 126,519,757,431.38
  5. Step 5: Solve for x
    x = 126,519,757,431.38/400,817.02
  6. Step 6: Final answer
    x = 315,654.66

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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.