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Finding the Fourth Proportional to 273,893.60, 410,840.40 and 86,904.80

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Solution

The fourth proportional to 273,893.60, 410,840.40 and 86,904.80 is: 130,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,893.60 : 410,840.40 = 86,904.80 : x
  2. Step 2: Convert to fraction form
    273,893.60/410,840.40 = 86,904.80/x
  3. Step 3: Cross multiply
    273,893.60x = 410,840.40 × 86,904.80
  4. Step 4: Simplify right side
    273,893.60x = 35,704,002,793.92
  5. Step 5: Solve for x
    x = 35,704,002,793.92/273,893.60
  6. Step 6: Final answer
    x = 130,357.20

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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.