Home / 279,656.32-385,914.84-170,942.68

Finding the Fourth Proportional to 279,656.32, 385,914.84 and 170,942.68

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Solution

The fourth proportional to 279,656.32, 385,914.84 and 170,942.68 is: 235,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,656.32 : 385,914.84 = 170,942.68 : x
  2. Step 2: Convert to fraction form
    279,656.32/385,914.84 = 170,942.68/x
  3. Step 3: Cross multiply
    279,656.32x = 385,914.84 × 170,942.68
  4. Step 4: Simplify right side
    279,656.32x = 65,969,317,001.37
  5. Step 5: Solve for x
    x = 65,969,317,001.37/279,656.32
  6. Step 6: Final answer
    x = 235,894.25

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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.