Home / 320,853.21-481,117.82-187,773.45

Finding the Fourth Proportional to 320,853.21, 481,117.82 and 187,773.45

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Solution

The fourth proportional to 320,853.21, 481,117.82 and 187,773.45 is: 281,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,853.21 : 481,117.82 = 187,773.45 : x
  2. Step 2: Convert to fraction form
    320,853.21/481,117.82 = 187,773.45/x
  3. Step 3: Cross multiply
    320,853.21x = 481,117.82 × 187,773.45
  4. Step 4: Simplify right side
    320,853.21x = 90,341,151,979.01
  5. Step 5: Solve for x
    x = 90,341,151,979.01/320,853.21
  6. Step 6: Final answer
    x = 281,565.37

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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.