Home / 219,226.73-302,583.42-128,611.80

Finding the Fourth Proportional to 219,226.73, 302,583.42 and 128,611.80

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Solution

The fourth proportional to 219,226.73, 302,583.42 and 128,611.80 is: 177,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,226.73 : 302,583.42 = 128,611.80 : x
  2. Step 2: Convert to fraction form
    219,226.73/302,583.42 = 128,611.80/x
  3. Step 3: Cross multiply
    219,226.73x = 302,583.42 × 128,611.80
  4. Step 4: Simplify right side
    219,226.73x = 38,915,798,296.36
  5. Step 5: Solve for x
    x = 38,915,798,296.36/219,226.73
  6. Step 6: Final answer
    x = 177,513.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.