Home / 319,455.90-479,241.23-109,044.63

Finding the Fourth Proportional to 319,455.90, 479,241.23 and 109,044.63

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Solution

The fourth proportional to 319,455.90, 479,241.23 and 109,044.63 is: 163,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,455.90 : 479,241.23 = 109,044.63 : x
  2. Step 2: Convert to fraction form
    319,455.90/479,241.23 = 109,044.63/x
  3. Step 3: Cross multiply
    319,455.90x = 479,241.23 × 109,044.63
  4. Step 4: Simplify right side
    319,455.90x = 52,258,682,060.87
  5. Step 5: Solve for x
    x = 52,258,682,060.87/319,455.90
  6. Step 6: Final answer
    x = 163,586.53

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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.