Home / 219,528.33-302,951.44-128,885.38

Finding the Fourth Proportional to 219,528.33, 302,951.44 and 128,885.38

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Solution

The fourth proportional to 219,528.33, 302,951.44 and 128,885.38 is: 177,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,528.33 : 302,951.44 = 128,885.38 : x
  2. Step 2: Convert to fraction form
    219,528.33/302,951.44 = 128,885.38/x
  3. Step 3: Cross multiply
    219,528.33x = 302,951.44 × 128,885.38
  4. Step 4: Simplify right side
    219,528.33x = 39,046,010,869.68
  5. Step 5: Solve for x
    x = 39,046,010,869.68/219,528.33
  6. Step 6: Final answer
    x = 177,863.20

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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.