Home / 280,012.40-386,245.32-179,235.44

Finding the Fourth Proportional to 280,012.40, 386,245.32 and 179,235.44

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Solution

The fourth proportional to 280,012.40, 386,245.32 and 179,235.44 is: 247,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,012.40 : 386,245.32 = 179,235.44 : x
  2. Step 2: Convert to fraction form
    280,012.40/386,245.32 = 179,235.44/x
  3. Step 3: Cross multiply
    280,012.40x = 386,245.32 × 179,235.44
  4. Step 4: Simplify right side
    280,012.40x = 69,228,849,878.14
  5. Step 5: Solve for x
    x = 69,228,849,878.14/280,012.40
  6. Step 6: Final answer
    x = 247,234.94

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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.