Home / 328,171.40-492,252.21-200,125.31

Finding the Fourth Proportional to 328,171.40, 492,252.21 and 200,125.31

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Solution

The fourth proportional to 328,171.40, 492,252.21 and 200,125.31 is: 300,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,171.40 : 492,252.21 = 200,125.31 : x
  2. Step 2: Convert to fraction form
    328,171.40/492,252.21 = 200,125.31/x
  3. Step 3: Cross multiply
    328,171.40x = 492,252.21 × 200,125.31
  4. Step 4: Simplify right side
    328,171.40x = 98,512,124,977.28
  5. Step 5: Solve for x
    x = 98,512,124,977.28/328,171.40
  6. Step 6: Final answer
    x = 300,184.98

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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.