Home / 325,936.40-488,904.60-89,278.70

Finding the Fourth Proportional to 325,936.40, 488,904.60 and 89,278.70

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Solution

The fourth proportional to 325,936.40, 488,904.60 and 89,278.70 is: 133,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,936.40 : 488,904.60 = 89,278.70 : x
  2. Step 2: Convert to fraction form
    325,936.40/488,904.60 = 89,278.70/x
  3. Step 3: Cross multiply
    325,936.40x = 488,904.60 × 89,278.70
  4. Step 4: Simplify right side
    325,936.40x = 43,648,767,112.02
  5. Step 5: Solve for x
    x = 43,648,767,112.02/325,936.40
  6. Step 6: Final answer
    x = 133,918.05

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1.5x scale

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.