Home / 319,783.95-479,546.33-109,313.55

Finding the Fourth Proportional to 319,783.95, 479,546.33 and 109,313.55

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Solution

The fourth proportional to 319,783.95, 479,546.33 and 109,313.55 is: 163,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,783.95 : 479,546.33 = 109,313.55 : x
  2. Step 2: Convert to fraction form
    319,783.95/479,546.33 = 109,313.55/x
  3. Step 3: Cross multiply
    319,783.95x = 479,546.33 × 109,313.55
  4. Step 4: Simplify right side
    319,783.95x = 52,420,911,175.20
  5. Step 5: Solve for x
    x = 52,420,911,175.20/319,783.95
  6. Step 6: Final answer
    x = 163,926.02

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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.