Home / 259,631.04-389,307.24-133,219.20

Finding the Fourth Proportional to 259,631.04, 389,307.24 and 133,219.20

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Solution

The fourth proportional to 259,631.04, 389,307.24 and 133,219.20 is: 199,757.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,631.04 : 389,307.24 = 133,219.20 : x
  2. Step 2: Convert to fraction form
    259,631.04/389,307.24 = 133,219.20/x
  3. Step 3: Cross multiply
    259,631.04x = 389,307.24 × 133,219.20
  4. Step 4: Simplify right side
    259,631.04x = 51,863,199,067.01
  5. Step 5: Solve for x
    x = 51,863,199,067.01/259,631.04
  6. Step 6: Final answer
    x = 199,757.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.