Home / 278,970.22-384,977.07-151,645.81

Finding the Fourth Proportional to 278,970.22, 384,977.07 and 151,645.81

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Solution

The fourth proportional to 278,970.22, 384,977.07 and 151,645.81 is: 209,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,970.22 : 384,977.07 = 151,645.81 : x
  2. Step 2: Convert to fraction form
    278,970.22/384,977.07 = 151,645.81/x
  3. Step 3: Cross multiply
    278,970.22x = 384,977.07 × 151,645.81
  4. Step 4: Simplify right side
    278,970.22x = 58,380,158,853.35
  5. Step 5: Solve for x
    x = 58,380,158,853.35/278,970.22
  6. Step 6: Final answer
    x = 209,270.22

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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.