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Finding the Fourth Proportional to 496,495.68, 685,163.40 and 270,139.68

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Solution

The fourth proportional to 496,495.68, 685,163.40 and 270,139.68 is: 372,792.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,495.68 : 685,163.40 = 270,139.68 : x
  2. Step 2: Convert to fraction form
    496,495.68/685,163.40 = 270,139.68/x
  3. Step 3: Cross multiply
    496,495.68x = 685,163.40 × 270,139.68
  4. Step 4: Simplify right side
    496,495.68x = 185,089,821,623.71
  5. Step 5: Solve for x
    x = 185,089,821,623.71/496,495.68
  6. Step 6: Final answer
    x = 372,792.41

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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.