Home / 358,005.37-493,924.44-221,990.38

Finding the Fourth Proportional to 358,005.37, 493,924.44 and 221,990.38

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Solution

The fourth proportional to 358,005.37, 493,924.44 and 221,990.38 is: 306,270.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,005.37 : 493,924.44 = 221,990.38 : x
  2. Step 2: Convert to fraction form
    358,005.37/493,924.44 = 221,990.38/x
  3. Step 3: Cross multiply
    358,005.37x = 493,924.44 × 221,990.38
  4. Step 4: Simplify right side
    358,005.37x = 109,646,474,126.89
  5. Step 5: Solve for x
    x = 109,646,474,126.89/358,005.37
  6. Step 6: Final answer
    x = 306,270.47

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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.