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Finding the Fourth Proportional to 318,563.52, 439,647.12 and 175,352.64

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Solution

The fourth proportional to 318,563.52, 439,647.12 and 175,352.64 is: 242,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,563.52 : 439,647.12 = 175,352.64 : x
  2. Step 2: Convert to fraction form
    318,563.52/439,647.12 = 175,352.64/x
  3. Step 3: Cross multiply
    318,563.52x = 439,647.12 × 175,352.64
  4. Step 4: Simplify right side
    318,563.52x = 77,093,283,160.40
  5. Step 5: Solve for x
    x = 77,093,283,160.40/318,563.52
  6. Step 6: Final answer
    x = 242,002.86

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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.