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Finding the Fourth Proportional to 392,735.03, 541,970.91 and 239,741.01

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Solution

The fourth proportional to 392,735.03, 541,970.91 and 239,741.01 is: 330,840.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,735.03 : 541,970.91 = 239,741.01 : x
  2. Step 2: Convert to fraction form
    392,735.03/541,970.91 = 239,741.01/x
  3. Step 3: Cross multiply
    392,735.03x = 541,970.91 × 239,741.01
  4. Step 4: Simplify right side
    392,735.03x = 129,932,653,354.02
  5. Step 5: Solve for x
    x = 129,932,653,354.02/392,735.03
  6. Step 6: Final answer
    x = 330,840.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.