Home / 279,884.72-385,935.68-189,083.02

Finding the Fourth Proportional to 279,884.72, 385,935.68 and 189,083.02

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Solution

The fourth proportional to 279,884.72, 385,935.68 and 189,083.02 is: 260,728.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,884.72 : 385,935.68 = 189,083.02 : x
  2. Step 2: Convert to fraction form
    279,884.72/385,935.68 = 189,083.02/x
  3. Step 3: Cross multiply
    279,884.72x = 385,935.68 × 189,083.02
  4. Step 4: Simplify right side
    279,884.72x = 72,973,883,427.45
  5. Step 5: Solve for x
    x = 72,973,883,427.45/279,884.72
  6. Step 6: Final answer
    x = 260,728.36

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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.