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Finding the Fourth Proportional to 239,383.99, 359,128.54 and 70,917.51

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Solution

The fourth proportional to 239,383.99, 359,128.54 and 70,917.51 is: 106,391.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,383.99 : 359,128.54 = 70,917.51 : x
  2. Step 2: Convert to fraction form
    239,383.99/359,128.54 = 70,917.51/x
  3. Step 3: Cross multiply
    239,383.99x = 359,128.54 × 70,917.51
  4. Step 4: Simplify right side
    239,383.99x = 25,468,500,031.09
  5. Step 5: Solve for x
    x = 25,468,500,031.09/239,383.99
  6. Step 6: Final answer
    x = 106,391.83

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1.5x scale

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.