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Finding the Fourth Proportional to 383,625.60, 575,438.40 and 231,410.40

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Solution

The fourth proportional to 383,625.60, 575,438.40 and 231,410.40 is: 347,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,625.60 : 575,438.40 = 231,410.40 : x
  2. Step 2: Convert to fraction form
    383,625.60/575,438.40 = 231,410.40/x
  3. Step 3: Cross multiply
    383,625.60x = 575,438.40 × 231,410.40
  4. Step 4: Simplify right side
    383,625.60x = 133,162,430,319.36
  5. Step 5: Solve for x
    x = 133,162,430,319.36/383,625.60
  6. Step 6: Final answer
    x = 347,115.60

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1.5x scale

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.