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Finding the Fourth Proportional to 383,420.16, 575,130.24 and 117,181.44

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Solution

The fourth proportional to 383,420.16, 575,130.24 and 117,181.44 is: 175,772.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,420.16 : 575,130.24 = 117,181.44 : x
  2. Step 2: Convert to fraction form
    383,420.16/575,130.24 = 117,181.44/x
  3. Step 3: Cross multiply
    383,420.16x = 575,130.24 × 117,181.44
  4. Step 4: Simplify right side
    383,420.16x = 67,394,589,710.75
  5. Step 5: Solve for x
    x = 67,394,589,710.75/383,420.16
  6. Step 6: Final answer
    x = 175,772.16

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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.