Home / 278,642.41-384,516.25-151,315.27

Finding the Fourth Proportional to 278,642.41, 384,516.25 and 151,315.27

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Solution

The fourth proportional to 278,642.41, 384,516.25 and 151,315.27 is: 208,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,642.41 : 384,516.25 = 151,315.27 : x
  2. Step 2: Convert to fraction form
    278,642.41/384,516.25 = 151,315.27/x
  3. Step 3: Cross multiply
    278,642.41x = 384,516.25 × 151,315.27
  4. Step 4: Simplify right side
    278,642.41x = 58,183,180,188.14
  5. Step 5: Solve for x
    x = 58,183,180,188.14/278,642.41
  6. Step 6: Final answer
    x = 208,809.49

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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.