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Finding the Fourth Proportional to 303,364.74, 455,047.11 and 284,665.89

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Solution

The fourth proportional to 303,364.74, 455,047.11 and 284,665.89 is: 426,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,364.74 : 455,047.11 = 284,665.89 : x
  2. Step 2: Convert to fraction form
    303,364.74/455,047.11 = 284,665.89/x
  3. Step 3: Cross multiply
    303,364.74x = 455,047.11 × 284,665.89
  4. Step 4: Simplify right side
    303,364.74x = 129,536,389,136.75
  5. Step 5: Solve for x
    x = 129,536,389,136.75/303,364.74
  6. Step 6: Final answer
    x = 426,998.83

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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.