Home / 304,835.03-420,877.74-190,288.07

Finding the Fourth Proportional to 304,835.03, 420,877.74 and 190,288.07

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Solution

The fourth proportional to 304,835.03, 420,877.74 and 190,288.07 is: 262,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,835.03 : 420,877.74 = 190,288.07 : x
  2. Step 2: Convert to fraction form
    304,835.03/420,877.74 = 190,288.07/x
  3. Step 3: Cross multiply
    304,835.03x = 420,877.74 × 190,288.07
  4. Step 4: Simplify right side
    304,835.03x = 80,088,012,850.56
  5. Step 5: Solve for x
    x = 80,088,012,850.56/304,835.03
  6. Step 6: Final answer
    x = 262,725.75

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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.