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Finding the Fourth Proportional to 371,803.37, 557,739.63 and 131,893.72

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Solution

The fourth proportional to 371,803.37, 557,739.63 and 131,893.72 is: 197,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,803.37 : 557,739.63 = 131,893.72 : x
  2. Step 2: Convert to fraction form
    371,803.37/557,739.63 = 131,893.72/x
  3. Step 3: Cross multiply
    371,803.37x = 557,739.63 × 131,893.72
  4. Step 4: Simplify right side
    371,803.37x = 73,562,353,197.77
  5. Step 5: Solve for x
    x = 73,562,353,197.77/371,803.37
  6. Step 6: Final answer
    x = 197,852.84

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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.