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Finding the Fourth Proportional to 284,803.80, 427,205.70 and 247,939.80

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Solution

The fourth proportional to 284,803.80, 427,205.70 and 247,939.80 is: 371,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,803.80 : 427,205.70 = 247,939.80 : x
  2. Step 2: Convert to fraction form
    284,803.80/427,205.70 = 247,939.80/x
  3. Step 3: Cross multiply
    284,803.80x = 427,205.70 × 247,939.80
  4. Step 4: Simplify right side
    284,803.80x = 105,921,295,816.86
  5. Step 5: Solve for x
    x = 105,921,295,816.86/284,803.80
  6. Step 6: Final answer
    x = 371,909.70

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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.