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Finding the Fourth Proportional to 273,881.60, 410,822.40 and 76,889.60

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Solution

The fourth proportional to 273,881.60, 410,822.40 and 76,889.60 is: 115,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,881.60 : 410,822.40 = 76,889.60 : x
  2. Step 2: Convert to fraction form
    273,881.60/410,822.40 = 76,889.60/x
  3. Step 3: Cross multiply
    273,881.60x = 410,822.40 × 76,889.60
  4. Step 4: Simplify right side
    273,881.60x = 31,587,970,007.04
  5. Step 5: Solve for x
    x = 31,587,970,007.04/273,881.60
  6. Step 6: Final answer
    x = 115,334.40

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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.