Home / 354,893.02-489,795.33-201,968.40

Finding the Fourth Proportional to 354,893.02, 489,795.33 and 201,968.40

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Solution

The fourth proportional to 354,893.02, 489,795.33 and 201,968.40 is: 278,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,893.02 : 489,795.33 = 201,968.40 : x
  2. Step 2: Convert to fraction form
    354,893.02/489,795.33 = 201,968.40/x
  3. Step 3: Cross multiply
    354,893.02x = 489,795.33 × 201,968.40
  4. Step 4: Simplify right side
    354,893.02x = 98,923,181,721.69
  5. Step 5: Solve for x
    x = 98,923,181,721.69/354,893.02
  6. Step 6: Final answer
    x = 278,740.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.