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Finding the Fourth Proportional to 273,877.20, 410,847.80 and 86,907.60

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Solution

The fourth proportional to 273,877.20, 410,847.80 and 86,907.60 is: 130,371.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,877.20 : 410,847.80 = 86,907.60 : x
  2. Step 2: Convert to fraction form
    273,877.20/410,847.80 = 86,907.60/x
  3. Step 3: Cross multiply
    273,877.20x = 410,847.80 × 86,907.60
  4. Step 4: Simplify right side
    273,877.20x = 35,705,796,263.28
  5. Step 5: Solve for x
    x = 35,705,796,263.28/273,877.20
  6. Step 6: Final answer
    x = 130,371.55

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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.