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Finding the Fourth Proportional to 254,510.91, 351,229.28 and 139,800.16

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Solution

The fourth proportional to 254,510.91, 351,229.28 and 139,800.16 is: 192,926.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,510.91 : 351,229.28 = 139,800.16 : x
  2. Step 2: Convert to fraction form
    254,510.91/351,229.28 = 139,800.16/x
  3. Step 3: Cross multiply
    254,510.91x = 351,229.28 × 139,800.16
  4. Step 4: Simplify right side
    254,510.91x = 49,101,907,784.54
  5. Step 5: Solve for x
    x = 49,101,907,784.54/254,510.91
  6. Step 6: Final answer
    x = 192,926.54

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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.