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Finding the Fourth Proportional to 254,074.56, 350,629.07 and 139,357.91

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Solution

The fourth proportional to 254,074.56, 350,629.07 and 139,357.91 is: 192,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,074.56 : 350,629.07 = 139,357.91 : x
  2. Step 2: Convert to fraction form
    254,074.56/350,629.07 = 139,357.91/x
  3. Step 3: Cross multiply
    254,074.56x = 350,629.07 × 139,357.91
  4. Step 4: Simplify right side
    254,074.56x = 48,862,931,930.51
  5. Step 5: Solve for x
    x = 48,862,931,930.51/254,074.56
  6. Step 6: Final answer
    x = 192,317.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.