Home / 438,324.40-657,292.20-201,739.60

Finding the Fourth Proportional to 438,324.40, 657,292.20 and 201,739.60

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Solution

The fourth proportional to 438,324.40, 657,292.20 and 201,739.60 is: 302,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,324.40 : 657,292.20 = 201,739.60 : x
  2. Step 2: Convert to fraction form
    438,324.40/657,292.20 = 201,739.60/x
  3. Step 3: Cross multiply
    438,324.40x = 657,292.20 × 201,739.60
  4. Step 4: Simplify right side
    438,324.40x = 132,601,865,511.12
  5. Step 5: Solve for x
    x = 132,601,865,511.12/438,324.40
  6. Step 6: Final answer
    x = 302,519.93

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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.