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Finding the Fourth Proportional to 319,498.88, 479,245.44 and 122,506.88

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Solution

The fourth proportional to 319,498.88, 479,245.44 and 122,506.88 is: 183,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,498.88 : 479,245.44 = 122,506.88 : x
  2. Step 2: Convert to fraction form
    319,498.88/479,245.44 = 122,506.88/x
  3. Step 3: Cross multiply
    319,498.88x = 479,245.44 × 122,506.88
  4. Step 4: Simplify right side
    319,498.88x = 58,710,863,608.63
  5. Step 5: Solve for x
    x = 58,710,863,608.63/319,498.88
  6. Step 6: Final answer
    x = 183,759.22

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1.5x scale

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.