Home / 247,268.20-370,610.70-128,878.60

Finding the Fourth Proportional to 247,268.20, 370,610.70 and 128,878.60

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Solution

The fourth proportional to 247,268.20, 370,610.70 and 128,878.60 is: 193,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,268.20 : 370,610.70 = 128,878.60 : x
  2. Step 2: Convert to fraction form
    247,268.20/370,610.70 = 128,878.60/x
  3. Step 3: Cross multiply
    247,268.20x = 370,610.70 × 128,878.60
  4. Step 4: Simplify right side
    247,268.20x = 47,763,788,161.02
  5. Step 5: Solve for x
    x = 47,763,788,161.02/247,268.20
  6. Step 6: Final answer
    x = 193,165.92

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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.