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Finding the Fourth Proportional to 383,493.60, 575,240.40 and 103,039.20

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Solution

The fourth proportional to 383,493.60, 575,240.40 and 103,039.20 is: 154,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,493.60 : 575,240.40 = 103,039.20 : x
  2. Step 2: Convert to fraction form
    383,493.60/575,240.40 = 103,039.20/x
  3. Step 3: Cross multiply
    383,493.60x = 575,240.40 × 103,039.20
  4. Step 4: Simplify right side
    383,493.60x = 59,272,310,623.68
  5. Step 5: Solve for x
    x = 59,272,310,623.68/383,493.60
  6. Step 6: Final answer
    x = 154,558.80

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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.