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Finding the Fourth Proportional to 499,383.50, 689,149.23 and 273,029

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Solution

The fourth proportional to 499,383.50, 689,149.23 and 273,029 is: 376,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,383.50 : 689,149.23 = 273,029 : x
  2. Step 2: Convert to fraction form
    499,383.50/689,149.23 = 273,029/x
  3. Step 3: Cross multiply
    499,383.50x = 689,149.23 × 273,029
  4. Step 4: Simplify right side
    499,383.50x = 188,157,725,117.67
  5. Step 5: Solve for x
    x = 188,157,725,117.67/499,383.50
  6. Step 6: Final answer
    x = 376,780.02

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1.5x scale

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.