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Finding the Fourth Proportional to 326,135.58, 490,136.49 and 160,040.22

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Solution

The fourth proportional to 326,135.58, 490,136.49 and 160,040.22 is: 240,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,135.58 : 490,136.49 = 160,040.22 : x
  2. Step 2: Convert to fraction form
    326,135.58/490,136.49 = 160,040.22/x
  3. Step 3: Cross multiply
    326,135.58x = 490,136.49 × 160,040.22
  4. Step 4: Simplify right side
    326,135.58x = 78,441,551,689.63
  5. Step 5: Solve for x
    x = 78,441,551,689.63/326,135.58
  6. Step 6: Final answer
    x = 240,518.23

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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.