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Finding the Fourth Proportional to 271,945.60, 407,918.72 and 84,958.08

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Solution

The fourth proportional to 271,945.60, 407,918.72 and 84,958.08 is: 127,437.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,945.60 : 407,918.72 = 84,958.08 : x
  2. Step 2: Convert to fraction form
    271,945.60/407,918.72 = 84,958.08/x
  3. Step 3: Cross multiply
    271,945.60x = 407,918.72 × 84,958.08
  4. Step 4: Simplify right side
    271,945.60x = 34,655,991,247.26
  5. Step 5: Solve for x
    x = 34,655,991,247.26/271,945.60
  6. Step 6: Final answer
    x = 127,437.22

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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.