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Finding the Fourth Proportional to 323,889.96, 484,838.48 and 211,327.80

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Solution

The fourth proportional to 323,889.96, 484,838.48 and 211,327.80 is: 316,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,889.96 : 484,838.48 = 211,327.80 : x
  2. Step 2: Convert to fraction form
    323,889.96/484,838.48 = 211,327.80/x
  3. Step 3: Cross multiply
    323,889.96x = 484,838.48 × 211,327.80
  4. Step 4: Simplify right side
    323,889.96x = 102,459,849,110.35
  5. Step 5: Solve for x
    x = 102,459,849,110.35/323,889.96
  6. Step 6: Final answer
    x = 316,341.55

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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.