Home / 320,044.69-480,136.23-170,263.21

Finding the Fourth Proportional to 320,044.69, 480,136.23 and 170,263.21

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Solution

The fourth proportional to 320,044.69, 480,136.23 and 170,263.21 is: 255,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,044.69 : 480,136.23 = 170,263.21 : x
  2. Step 2: Convert to fraction form
    320,044.69/480,136.23 = 170,263.21/x
  3. Step 3: Cross multiply
    320,044.69x = 480,136.23 × 170,263.21
  4. Step 4: Simplify right side
    320,044.69x = 81,749,532,505.10
  5. Step 5: Solve for x
    x = 81,749,532,505.10/320,044.69
  6. Step 6: Final answer
    x = 255,431.62

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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.