Home / 219,538.80-328,847.40-120,927.60

Finding the Fourth Proportional to 219,538.80, 328,847.40 and 120,927.60

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Solution

The fourth proportional to 219,538.80, 328,847.40 and 120,927.60 is: 181,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,538.80 : 328,847.40 = 120,927.60 : x
  2. Step 2: Convert to fraction form
    219,538.80/328,847.40 = 120,927.60/x
  3. Step 3: Cross multiply
    219,538.80x = 328,847.40 × 120,927.60
  4. Step 4: Simplify right side
    219,538.80x = 39,766,726,848.24
  5. Step 5: Solve for x
    x = 39,766,726,848.24/219,538.80
  6. Step 6: Final answer
    x = 181,137.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.