Home / 304,836.03-420,879.12-190,289.07

Finding the Fourth Proportional to 304,836.03, 420,879.12 and 190,289.07

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Solution

The fourth proportional to 304,836.03, 420,879.12 and 190,289.07 is: 262,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,836.03 : 420,879.12 = 190,289.07 : x
  2. Step 2: Convert to fraction form
    304,836.03/420,879.12 = 190,289.07/x
  3. Step 3: Cross multiply
    304,836.03x = 420,879.12 × 190,289.07
  4. Step 4: Simplify right side
    304,836.03x = 80,088,696,327.22
  5. Step 5: Solve for x
    x = 80,088,696,327.22/304,836.03
  6. Step 6: Final answer
    x = 262,727.13

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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.