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Finding the Fourth Proportional to 239,445, 359,169.30 and 106,289.46

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Solution

The fourth proportional to 239,445, 359,169.30 and 106,289.46 is: 159,434.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,445 : 359,169.30 = 106,289.46 : x
  2. Step 2: Convert to fraction form
    239,445/359,169.30 = 106,289.46/x
  3. Step 3: Cross multiply
    239,445x = 359,169.30 × 106,289.46
  4. Step 4: Simplify right side
    239,445x = 38,175,910,945.58
  5. Step 5: Solve for x
    x = 38,175,910,945.58/239,445
  6. Step 6: Final answer
    x = 159,434.99

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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.