Home / 319,946.40-479,971.44-132,968.16

Finding the Fourth Proportional to 319,946.40, 479,971.44 and 132,968.16

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Solution

The fourth proportional to 319,946.40, 479,971.44 and 132,968.16 is: 199,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,946.40 : 479,971.44 = 132,968.16 : x
  2. Step 2: Convert to fraction form
    319,946.40/479,971.44 = 132,968.16/x
  3. Step 3: Cross multiply
    319,946.40x = 479,971.44 × 132,968.16
  4. Step 4: Simplify right side
    319,946.40x = 63,820,919,229.35
  5. Step 5: Solve for x
    x = 63,820,919,229.35/319,946.40
  6. Step 6: Final answer
    x = 199,473.78

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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.