Home / 278,498.25-384,328.26-151,173.81

Finding the Fourth Proportional to 278,498.25, 384,328.26 and 151,173.81

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Solution

The fourth proportional to 278,498.25, 384,328.26 and 151,173.81 is: 208,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,498.25 : 384,328.26 = 151,173.81 : x
  2. Step 2: Convert to fraction form
    278,498.25/384,328.26 = 151,173.81/x
  3. Step 3: Cross multiply
    278,498.25x = 384,328.26 × 151,173.81
  4. Step 4: Simplify right side
    278,498.25x = 58,100,367,354.87
  5. Step 5: Solve for x
    x = 58,100,367,354.87/278,498.25
  6. Step 6: Final answer
    x = 208,620.22

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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.