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Finding the Fourth Proportional to 439,360.64, 606,343.83 and 248,391.80

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Solution

The fourth proportional to 439,360.64, 606,343.83 and 248,391.80 is: 342,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,360.64 : 606,343.83 = 248,391.80 : x
  2. Step 2: Convert to fraction form
    439,360.64/606,343.83 = 248,391.80/x
  3. Step 3: Cross multiply
    439,360.64x = 606,343.83 × 248,391.80
  4. Step 4: Simplify right side
    439,360.64x = 150,610,835,352.59
  5. Step 5: Solve for x
    x = 150,610,835,352.59/439,360.64
  6. Step 6: Final answer
    x = 342,795.47

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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.