Home / 320,735.49-481,475.94-187,711.20

Finding the Fourth Proportional to 320,735.49, 481,475.94 and 187,711.20

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Solution

The fourth proportional to 320,735.49, 481,475.94 and 187,711.20 is: 281,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,735.49 : 481,475.94 = 187,711.20 : x
  2. Step 2: Convert to fraction form
    320,735.49/481,475.94 = 187,711.20/x
  3. Step 3: Cross multiply
    320,735.49x = 481,475.94 × 187,711.20
  4. Step 4: Simplify right side
    320,735.49x = 90,378,426,468.53
  5. Step 5: Solve for x
    x = 90,378,426,468.53/320,735.49
  6. Step 6: Final answer
    x = 281,784.93

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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.