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Finding the Fourth Proportional to 515,037.60, 772,337.70 and 248,879.70

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Solution

The fourth proportional to 515,037.60, 772,337.70 and 248,879.70 is: 373,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,037.60 : 772,337.70 = 248,879.70 : x
  2. Step 2: Convert to fraction form
    515,037.60/772,337.70 = 248,879.70/x
  3. Step 3: Cross multiply
    515,037.60x = 772,337.70 × 248,879.70
  4. Step 4: Simplify right side
    515,037.60x = 192,219,175,074.69
  5. Step 5: Solve for x
    x = 192,219,175,074.69/515,037.60
  6. Step 6: Final answer
    x = 373,213.87

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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.