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Finding the Fourth Proportional to 195,996.40, 294,148.20 and 90,828.40

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Solution

The fourth proportional to 195,996.40, 294,148.20 and 90,828.40 is: 136,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,996.40 : 294,148.20 = 90,828.40 : x
  2. Step 2: Convert to fraction form
    195,996.40/294,148.20 = 90,828.40/x
  3. Step 3: Cross multiply
    195,996.40x = 294,148.20 × 90,828.40
  4. Step 4: Simplify right side
    195,996.40x = 26,717,010,368.88
  5. Step 5: Solve for x
    x = 26,717,010,368.88/195,996.40
  6. Step 6: Final answer
    x = 136,313.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.