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Finding the Fourth Proportional to 552,653.20, 829,417.20 and 215,855.20

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Solution

The fourth proportional to 552,653.20, 829,417.20 and 215,855.20 is: 323,953.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,653.20 : 829,417.20 = 215,855.20 : x
  2. Step 2: Convert to fraction form
    552,653.20/829,417.20 = 215,855.20/x
  3. Step 3: Cross multiply
    552,653.20x = 829,417.20 × 215,855.20
  4. Step 4: Simplify right side
    552,653.20x = 179,034,015,589.44
  5. Step 5: Solve for x
    x = 179,034,015,589.44/552,653.20
  6. Step 6: Final answer
    x = 323,953.64

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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.