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Finding the Fourth Proportional to 630,409.05, 945,620.44 and 181,133.64

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Solution

The fourth proportional to 630,409.05, 945,620.44 and 181,133.64 is: 271,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,409.05 : 945,620.44 = 181,133.64 : x
  2. Step 2: Convert to fraction form
    630,409.05/945,620.44 = 181,133.64/x
  3. Step 3: Cross multiply
    630,409.05x = 945,620.44 × 181,133.64
  4. Step 4: Simplify right side
    630,409.05x = 171,283,671,902.77
  5. Step 5: Solve for x
    x = 171,283,671,902.77/630,409.05
  6. Step 6: Final answer
    x = 271,702.43

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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.