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Finding the Fourth Proportional to 306,838.32, 423,300.60 and 179,457.72

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Solution

The fourth proportional to 306,838.32, 423,300.60 and 179,457.72 is: 247,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,838.32 : 423,300.60 = 179,457.72 : x
  2. Step 2: Convert to fraction form
    306,838.32/423,300.60 = 179,457.72/x
  3. Step 3: Cross multiply
    306,838.32x = 423,300.60 × 179,457.72
  4. Step 4: Simplify right side
    306,838.32x = 75,964,560,550.63
  5. Step 5: Solve for x
    x = 75,964,560,550.63/306,838.32
  6. Step 6: Final answer
    x = 247,571.95

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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.