Home / 279,108.72-385,313.04-188,941.68

Finding the Fourth Proportional to 279,108.72, 385,313.04 and 188,941.68

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Solution

The fourth proportional to 279,108.72, 385,313.04 and 188,941.68 is: 260,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,108.72 : 385,313.04 = 188,941.68 : x
  2. Step 2: Convert to fraction form
    279,108.72/385,313.04 = 188,941.68/x
  3. Step 3: Cross multiply
    279,108.72x = 385,313.04 × 188,941.68
  4. Step 4: Simplify right side
    279,108.72x = 72,801,693,103.51
  5. Step 5: Solve for x
    x = 72,801,693,103.51/279,108.72
  6. Step 6: Final answer
    x = 260,836.33

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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.