Home / 304,914.96-420,777-168,948.36

Finding the Fourth Proportional to 304,914.96, 420,777 and 168,948.36

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Solution

The fourth proportional to 304,914.96, 420,777 and 168,948.36 is: 233,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,914.96 : 420,777 = 168,948.36 : x
  2. Step 2: Convert to fraction form
    304,914.96/420,777 = 168,948.36/x
  3. Step 3: Cross multiply
    304,914.96x = 420,777 × 168,948.36
  4. Step 4: Simplify right side
    304,914.96x = 71,089,584,075.72
  5. Step 5: Solve for x
    x = 71,089,584,075.72/304,914.96
  6. Step 6: Final answer
    x = 233,145.61

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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.