Home / 379,935.32-569,902.87-143,222.64

Finding the Fourth Proportional to 379,935.32, 569,902.87 and 143,222.64

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Solution

The fourth proportional to 379,935.32, 569,902.87 and 143,222.64 is: 214,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,935.32 : 569,902.87 = 143,222.64 : x
  2. Step 2: Convert to fraction form
    379,935.32/569,902.87 = 143,222.64/x
  3. Step 3: Cross multiply
    379,935.32x = 569,902.87 × 143,222.64
  4. Step 4: Simplify right side
    379,935.32x = 81,622,992,868.86
  5. Step 5: Solve for x
    x = 81,622,992,868.86/379,935.32
  6. Step 6: Final answer
    x = 214,833.92

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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.