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Finding the Fourth Proportional to 393,570.33, 590,792.54 and 203,979.93

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Solution

The fourth proportional to 393,570.33, 590,792.54 and 203,979.93 is: 306,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,570.33 : 590,792.54 = 203,979.93 : x
  2. Step 2: Convert to fraction form
    393,570.33/590,792.54 = 203,979.93/x
  3. Step 3: Cross multiply
    393,570.33x = 590,792.54 × 203,979.93
  4. Step 4: Simplify right side
    393,570.33x = 120,509,819,933.82
  5. Step 5: Solve for x
    x = 120,509,819,933.82/393,570.33
  6. Step 6: Final answer
    x = 306,196.40

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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.