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Finding the Fourth Proportional to 255,846.87, 353,070.06 and 141,129.54

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Solution

The fourth proportional to 255,846.87, 353,070.06 and 141,129.54 is: 194,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,846.87 : 353,070.06 = 141,129.54 : x
  2. Step 2: Convert to fraction form
    255,846.87/353,070.06 = 141,129.54/x
  3. Step 3: Cross multiply
    255,846.87x = 353,070.06 × 141,129.54
  4. Step 4: Simplify right side
    255,846.87x = 49,828,615,155.57
  5. Step 5: Solve for x
    x = 49,828,615,155.57/255,846.87
  6. Step 6: Final answer
    x = 194,759.53

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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.