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Finding the Fourth Proportional to 273,887.10, 410,830.65 and 86,898.60

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Solution

The fourth proportional to 273,887.10, 410,830.65 and 86,898.60 is: 130,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,887.10 : 410,830.65 = 86,898.60 : x
  2. Step 2: Convert to fraction form
    273,887.10/410,830.65 = 86,898.60/x
  3. Step 3: Cross multiply
    273,887.10x = 410,830.65 × 86,898.60
  4. Step 4: Simplify right side
    273,887.10x = 35,700,608,322.09
  5. Step 5: Solve for x
    x = 35,700,608,322.09/273,887.10
  6. Step 6: Final answer
    x = 130,347.90

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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.