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Finding the Fourth Proportional to 439,438.02, 606,440.80 and 248,440.02

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Solution

The fourth proportional to 439,438.02, 606,440.80 and 248,440.02 is: 342,856.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,438.02 : 606,440.80 = 248,440.02 : x
  2. Step 2: Convert to fraction form
    439,438.02/606,440.80 = 248,440.02/x
  3. Step 3: Cross multiply
    439,438.02x = 606,440.80 × 248,440.02
  4. Step 4: Simplify right side
    439,438.02x = 150,664,164,480.82
  5. Step 5: Solve for x
    x = 150,664,164,480.82/439,438.02
  6. Step 6: Final answer
    x = 342,856.46

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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.