Home / 304,837.03-420,880.50-190,290.07

Finding the Fourth Proportional to 304,837.03, 420,880.50 and 190,290.07

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Solution

The fourth proportional to 304,837.03, 420,880.50 and 190,290.07 is: 262,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,837.03 : 420,880.50 = 190,290.07 : x
  2. Step 2: Convert to fraction form
    304,837.03/420,880.50 = 190,290.07/x
  3. Step 3: Cross multiply
    304,837.03x = 420,880.50 × 190,290.07
  4. Step 4: Simplify right side
    304,837.03x = 80,089,379,806.64
  5. Step 5: Solve for x
    x = 80,089,379,806.64/304,837.03
  6. Step 6: Final answer
    x = 262,728.51

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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.