Home / 303,958.07-455,936.49-285,461.43

Finding the Fourth Proportional to 303,958.07, 455,936.49 and 285,461.43

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Solution

The fourth proportional to 303,958.07, 455,936.49 and 285,461.43 is: 428,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,958.07 : 455,936.49 = 285,461.43 : x
  2. Step 2: Convert to fraction form
    303,958.07/455,936.49 = 285,461.43/x
  3. Step 3: Cross multiply
    303,958.07x = 455,936.49 × 285,461.43
  4. Step 4: Simplify right side
    303,958.07x = 130,152,282,424.58
  5. Step 5: Solve for x
    x = 130,152,282,424.58/303,958.07
  6. Step 6: Final answer
    x = 428,191.57

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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.