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Finding the Fourth Proportional to 275,011.79, 412,518.05 and 75,333.94

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Solution

The fourth proportional to 275,011.79, 412,518.05 and 75,333.94 is: 113,001.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,011.79 : 412,518.05 = 75,333.94 : x
  2. Step 2: Convert to fraction form
    275,011.79/412,518.05 = 75,333.94/x
  3. Step 3: Cross multiply
    275,011.79x = 412,518.05 × 75,333.94
  4. Step 4: Simplify right side
    275,011.79x = 31,076,610,027.62
  5. Step 5: Solve for x
    x = 31,076,610,027.62/275,011.79
  6. Step 6: Final answer
    x = 113,001.01

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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.