Home / 213,136.25-319,399.61-156,532.23

Finding the Fourth Proportional to 213,136.25, 319,399.61 and 156,532.23

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Solution

The fourth proportional to 213,136.25, 319,399.61 and 156,532.23 is: 234,574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,136.25 : 319,399.61 = 156,532.23 : x
  2. Step 2: Convert to fraction form
    213,136.25/319,399.61 = 156,532.23/x
  3. Step 3: Cross multiply
    213,136.25x = 319,399.61 × 156,532.23
  4. Step 4: Simplify right side
    213,136.25x = 49,996,332,431.77
  5. Step 5: Solve for x
    x = 49,996,332,431.77/213,136.25
  6. Step 6: Final answer
    x = 234,574.52

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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.