Home / 448,400.75-672,137.57-208,318.77

Finding the Fourth Proportional to 448,400.75, 672,137.57 and 208,318.77

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Solution

The fourth proportional to 448,400.75, 672,137.57 and 208,318.77 is: 312,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,400.75 : 672,137.57 = 208,318.77 : x
  2. Step 2: Convert to fraction form
    448,400.75/672,137.57 = 208,318.77/x
  3. Step 3: Cross multiply
    448,400.75x = 672,137.57 × 208,318.77
  4. Step 4: Simplify right side
    448,400.75x = 140,018,870,811.60
  5. Step 5: Solve for x
    x = 140,018,870,811.60/448,400.75
  6. Step 6: Final answer
    x = 312,262.80

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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.