Home / 304,820.08-420,857.24-190,273.20

Finding the Fourth Proportional to 304,820.08, 420,857.24 and 190,273.20

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Solution

The fourth proportional to 304,820.08, 420,857.24 and 190,273.20 is: 262,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,820.08 : 420,857.24 = 190,273.20 : x
  2. Step 2: Convert to fraction form
    304,820.08/420,857.24 = 190,273.20/x
  3. Step 3: Cross multiply
    304,820.08x = 420,857.24 × 190,273.20
  4. Step 4: Simplify right side
    304,820.08x = 80,077,853,797.97
  5. Step 5: Solve for x
    x = 80,077,853,797.97/304,820.08
  6. Step 6: Final answer
    x = 262,705.31

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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.