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Finding the Fourth Proportional to 383,708.68, 575,212.38 and 134,254.60

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Solution

The fourth proportional to 383,708.68, 575,212.38 and 134,254.60 is: 201,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,708.68 : 575,212.38 = 134,254.60 : x
  2. Step 2: Convert to fraction form
    383,708.68/575,212.38 = 134,254.60/x
  3. Step 3: Cross multiply
    383,708.68x = 575,212.38 × 134,254.60
  4. Step 4: Simplify right side
    383,708.68x = 77,224,907,991.95
  5. Step 5: Solve for x
    x = 77,224,907,991.95/383,708.68
  6. Step 6: Final answer
    x = 201,259.22

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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.