Home / 304,786.07-420,810.29-190,239.20

Finding the Fourth Proportional to 304,786.07, 420,810.29 and 190,239.20

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Solution

The fourth proportional to 304,786.07, 420,810.29 and 190,239.20 is: 262,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,786.07 : 420,810.29 = 190,239.20 : x
  2. Step 2: Convert to fraction form
    304,786.07/420,810.29 = 190,239.20/x
  3. Step 3: Cross multiply
    304,786.07x = 420,810.29 × 190,239.20
  4. Step 4: Simplify right side
    304,786.07x = 80,054,609,866.12
  5. Step 5: Solve for x
    x = 80,054,609,866.12/304,786.07
  6. Step 6: Final answer
    x = 262,658.37

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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.