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Finding the Fourth Proportional to 439,392.96, 606,358.08 and 248,407.68

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Solution

The fourth proportional to 439,392.96, 606,358.08 and 248,407.68 is: 342,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,392.96 : 606,358.08 = 248,407.68 : x
  2. Step 2: Convert to fraction form
    439,392.96/606,358.08 = 248,407.68/x
  3. Step 3: Cross multiply
    439,392.96x = 606,358.08 × 248,407.68
  4. Step 4: Simplify right side
    439,392.96x = 150,624,003,902.05
  5. Step 5: Solve for x
    x = 150,624,003,902.05/439,392.96
  6. Step 6: Final answer
    x = 342,800.22

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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.