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Finding the Fourth Proportional to 236,899, 355,410.06 and 70,687

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Solution

The fourth proportional to 236,899, 355,410.06 and 70,687 is: 106,048.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,899 : 355,410.06 = 70,687 : x
  2. Step 2: Convert to fraction form
    236,899/355,410.06 = 70,687/x
  3. Step 3: Cross multiply
    236,899x = 355,410.06 × 70,687
  4. Step 4: Simplify right side
    236,899x = 25,122,870,911.22
  5. Step 5: Solve for x
    x = 25,122,870,911.22/236,899
  6. Step 6: Final answer
    x = 106,048.87

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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.