Home / 219,277.26-302,607.60-128,698.56

Finding the Fourth Proportional to 219,277.26, 302,607.60 and 128,698.56

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Solution

The fourth proportional to 219,277.26, 302,607.60 and 128,698.56 is: 177,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,277.26 : 302,607.60 = 128,698.56 : x
  2. Step 2: Convert to fraction form
    219,277.26/302,607.60 = 128,698.56/x
  3. Step 3: Cross multiply
    219,277.26x = 302,607.60 × 128,698.56
  4. Step 4: Simplify right side
    219,277.26x = 38,945,161,456.89
  5. Step 5: Solve for x
    x = 38,945,161,456.89/219,277.26
  6. Step 6: Final answer
    x = 177,606.93

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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.