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Finding the Fourth Proportional to 304,820.54, 420,857.72 and 190,273.58

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Solution

The fourth proportional to 304,820.54, 420,857.72 and 190,273.58 is: 262,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,820.54 : 420,857.72 = 190,273.58 : x
  2. Step 2: Convert to fraction form
    304,820.54/420,857.72 = 190,273.58/x
  3. Step 3: Cross multiply
    304,820.54x = 420,857.72 × 190,273.58
  4. Step 4: Simplify right side
    304,820.54x = 80,078,105,055.04
  5. Step 5: Solve for x
    x = 80,078,105,055.04/304,820.54
  6. Step 6: Final answer
    x = 262,705.74

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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.