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Finding the Fourth Proportional to 326,198.67, 488,896.41 and 155,510.31

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Solution

The fourth proportional to 326,198.67, 488,896.41 and 155,510.31 is: 233,074.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,198.67 : 488,896.41 = 155,510.31 : x
  2. Step 2: Convert to fraction form
    326,198.67/488,896.41 = 155,510.31/x
  3. Step 3: Cross multiply
    326,198.67x = 488,896.41 × 155,510.31
  4. Step 4: Simplify right side
    326,198.67x = 76,028,432,276.99
  5. Step 5: Solve for x
    x = 76,028,432,276.99/326,198.67
  6. Step 6: Final answer
    x = 233,074.01

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1.5x scale

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.