Home / 274,817.05-412,284.80-85,273.40

Finding the Fourth Proportional to 274,817.05, 412,284.80 and 85,273.40

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Solution

The fourth proportional to 274,817.05, 412,284.80 and 85,273.40 is: 127,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,817.05 : 412,284.80 = 85,273.40 : x
  2. Step 2: Convert to fraction form
    274,817.05/412,284.80 = 85,273.40/x
  3. Step 3: Cross multiply
    274,817.05x = 412,284.80 × 85,273.40
  4. Step 4: Simplify right side
    274,817.05x = 35,156,927,908.22
  5. Step 5: Solve for x
    x = 35,156,927,908.22/274,817.05
  6. Step 6: Final answer
    x = 127,928.48

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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.