Home / 219,226.29-302,582.84-128,611.37

Finding the Fourth Proportional to 219,226.29, 302,582.84 and 128,611.37

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Solution

The fourth proportional to 219,226.29, 302,582.84 and 128,611.37 is: 177,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,226.29 : 302,582.84 = 128,611.37 : x
  2. Step 2: Convert to fraction form
    219,226.29/302,582.84 = 128,611.37/x
  3. Step 3: Cross multiply
    219,226.29x = 302,582.84 × 128,611.37
  4. Step 4: Simplify right side
    219,226.29x = 38,915,591,434.92
  5. Step 5: Solve for x
    x = 38,915,591,434.92/219,226.29
  6. Step 6: Final answer
    x = 177,513.34

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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.