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Finding the Fourth Proportional to 194,660.80, 291,969.60 and 159,539.20

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Solution

The fourth proportional to 194,660.80, 291,969.60 and 159,539.20 is: 239,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,660.80 : 291,969.60 = 159,539.20 : x
  2. Step 2: Convert to fraction form
    194,660.80/291,969.60 = 159,539.20/x
  3. Step 3: Cross multiply
    194,660.80x = 291,969.60 × 159,539.20
  4. Step 4: Simplify right side
    194,660.80x = 46,580,596,408.32
  5. Step 5: Solve for x
    x = 46,580,596,408.32/194,660.80
  6. Step 6: Final answer
    x = 239,291.10

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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.