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Finding the Fourth Proportional to 282,698.40, 424,047.60 and 251,205.60

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Solution

The fourth proportional to 282,698.40, 424,047.60 and 251,205.60 is: 376,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,698.40 : 424,047.60 = 251,205.60 : x
  2. Step 2: Convert to fraction form
    282,698.40/424,047.60 = 251,205.60/x
  3. Step 3: Cross multiply
    282,698.40x = 424,047.60 × 251,205.60
  4. Step 4: Simplify right side
    282,698.40x = 106,523,131,786.56
  5. Step 5: Solve for x
    x = 106,523,131,786.56/282,698.40
  6. Step 6: Final answer
    x = 376,808.40

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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.