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Finding the Fourth Proportional to 273,837.60, 410,756.40 and 76,845.60

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Solution

The fourth proportional to 273,837.60, 410,756.40 and 76,845.60 is: 115,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,837.60 : 410,756.40 = 76,845.60 : x
  2. Step 2: Convert to fraction form
    273,837.60/410,756.40 = 76,845.60/x
  3. Step 3: Cross multiply
    273,837.60x = 410,756.40 × 76,845.60
  4. Step 4: Simplify right side
    273,837.60x = 31,564,822,011.84
  5. Step 5: Solve for x
    x = 31,564,822,011.84/273,837.60
  6. Step 6: Final answer
    x = 115,268.40

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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.