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Finding the Fourth Proportional to 306,184, 422,357.76 and 191,263.36

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Solution

The fourth proportional to 306,184, 422,357.76 and 191,263.36 is: 263,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,184 : 422,357.76 = 191,263.36 : x
  2. Step 2: Convert to fraction form
    306,184/422,357.76 = 191,263.36/x
  3. Step 3: Cross multiply
    306,184x = 422,357.76 × 191,263.36
  4. Step 4: Simplify right side
    306,184x = 80,781,564,299.67
  5. Step 5: Solve for x
    x = 80,781,564,299.67/306,184
  6. Step 6: Final answer
    x = 263,833.40

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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.