Home / 438,028.02-656,942.94-201,142.98

Finding the Fourth Proportional to 438,028.02, 656,942.94 and 201,142.98

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Solution

The fourth proportional to 438,028.02, 656,942.94 and 201,142.98 is: 301,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,028.02 : 656,942.94 = 201,142.98 : x
  2. Step 2: Convert to fraction form
    438,028.02/656,942.94 = 201,142.98/x
  3. Step 3: Cross multiply
    438,028.02x = 656,942.94 × 201,142.98
  4. Step 4: Simplify right side
    438,028.02x = 132,139,460,641.56
  5. Step 5: Solve for x
    x = 132,139,460,641.56/438,028.02
  6. Step 6: Final answer
    x = 301,668.97

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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.