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Finding the Fourth Proportional to 343,774.84, 515,676.18 and 163,767.68

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Solution

The fourth proportional to 343,774.84, 515,676.18 and 163,767.68 is: 245,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,774.84 : 515,676.18 = 163,767.68 : x
  2. Step 2: Convert to fraction form
    343,774.84/515,676.18 = 163,767.68/x
  3. Step 3: Cross multiply
    343,774.84x = 515,676.18 × 163,767.68
  4. Step 4: Simplify right side
    343,774.84x = 84,451,091,629.86
  5. Step 5: Solve for x
    x = 84,451,091,629.86/343,774.84
  6. Step 6: Final answer
    x = 245,658.15

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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.