Home / 304,629.66-420,435.36-189,926.91

Finding the Fourth Proportional to 304,629.66, 420,435.36 and 189,926.91

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Solution

The fourth proportional to 304,629.66, 420,435.36 and 189,926.91 is: 262,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,629.66 : 420,435.36 = 189,926.91 : x
  2. Step 2: Convert to fraction form
    304,629.66/420,435.36 = 189,926.91/x
  3. Step 3: Cross multiply
    304,629.66x = 420,435.36 × 189,926.91
  4. Step 4: Simplify right side
    304,629.66x = 79,851,988,779.54
  5. Step 5: Solve for x
    x = 79,851,988,779.54/304,629.66
  6. Step 6: Final answer
    x = 262,128.08

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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.