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Finding the Fourth Proportional to 279,094.82, 385,187.63 and 271,495.31

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Solution

The fourth proportional to 279,094.82, 385,187.63 and 271,495.31 is: 374,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,094.82 : 385,187.63 = 271,495.31 : x
  2. Step 2: Convert to fraction form
    279,094.82/385,187.63 = 271,495.31/x
  3. Step 3: Cross multiply
    279,094.82x = 385,187.63 × 271,495.31
  4. Step 4: Simplify right side
    279,094.82x = 104,576,631,731.60
  5. Step 5: Solve for x
    x = 104,576,631,731.60/279,094.82
  6. Step 6: Final answer
    x = 374,699.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.