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Finding the Fourth Proportional to 301,134.78, 450,913.05 and 211,905.18

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Solution

The fourth proportional to 301,134.78, 450,913.05 and 211,905.18 is: 317,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,134.78 : 450,913.05 = 211,905.18 : x
  2. Step 2: Convert to fraction form
    301,134.78/450,913.05 = 211,905.18/x
  3. Step 3: Cross multiply
    301,134.78x = 450,913.05 × 211,905.18
  4. Step 4: Simplify right side
    301,134.78x = 95,550,811,024.60
  5. Step 5: Solve for x
    x = 95,550,811,024.60/301,134.78
  6. Step 6: Final answer
    x = 317,302.48

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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.