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Finding the Fourth Proportional to 319,608.53, 479,288.19 and 119,820.01

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Solution

The fourth proportional to 319,608.53, 479,288.19 and 119,820.01 is: 179,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,608.53 : 479,288.19 = 119,820.01 : x
  2. Step 2: Convert to fraction form
    319,608.53/479,288.19 = 119,820.01/x
  3. Step 3: Cross multiply
    319,608.53x = 479,288.19 × 119,820.01
  4. Step 4: Simplify right side
    319,608.53x = 57,428,315,718.68
  5. Step 5: Solve for x
    x = 57,428,315,718.68/319,608.53
  6. Step 6: Final answer
    x = 179,683.30

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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.