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Finding the Fourth Proportional to 319,074.46, 440,320.83 and 173,879.92

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Solution

The fourth proportional to 319,074.46, 440,320.83 and 173,879.92 is: 239,953.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,074.46 : 440,320.83 = 173,879.92 : x
  2. Step 2: Convert to fraction form
    319,074.46/440,320.83 = 173,879.92/x
  3. Step 3: Cross multiply
    319,074.46x = 440,320.83 × 173,879.92
  4. Step 4: Simplify right side
    319,074.46x = 76,562,950,694.73
  5. Step 5: Solve for x
    x = 76,562,950,694.73/319,074.46
  6. Step 6: Final answer
    x = 239,953.24

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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.