Home / 230,546.69-318,153.82-128,572.27

Finding the Fourth Proportional to 230,546.69, 318,153.82 and 128,572.27

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Solution

The fourth proportional to 230,546.69, 318,153.82 and 128,572.27 is: 177,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,546.69 : 318,153.82 = 128,572.27 : x
  2. Step 2: Convert to fraction form
    230,546.69/318,153.82 = 128,572.27/x
  3. Step 3: Cross multiply
    230,546.69x = 318,153.82 × 128,572.27
  4. Step 4: Simplify right side
    230,546.69x = 40,905,758,846.57
  5. Step 5: Solve for x
    x = 40,905,758,846.57/230,546.69
  6. Step 6: Final answer
    x = 177,429.39

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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.