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Finding the Fourth Proportional to 285,125.58, 426,836.25 and 172,464.86

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Solution

The fourth proportional to 285,125.58, 426,836.25 and 172,464.86 is: 258,181.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,125.58 : 426,836.25 = 172,464.86 : x
  2. Step 2: Convert to fraction form
    285,125.58/426,836.25 = 172,464.86/x
  3. Step 3: Cross multiply
    285,125.58x = 426,836.25 × 172,464.86
  4. Step 4: Simplify right side
    285,125.58x = 73,614,254,099.18
  5. Step 5: Solve for x
    x = 73,614,254,099.18/285,125.58
  6. Step 6: Final answer
    x = 258,181.87

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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.