Home / 278,826.12-384,781.68-151,501.68

Finding the Fourth Proportional to 278,826.12, 384,781.68 and 151,501.68

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Solution

The fourth proportional to 278,826.12, 384,781.68 and 151,501.68 is: 209,073.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,826.12 : 384,781.68 = 151,501.68 : x
  2. Step 2: Convert to fraction form
    278,826.12/384,781.68 = 151,501.68/x
  3. Step 3: Cross multiply
    278,826.12x = 384,781.68 × 151,501.68
  4. Step 4: Simplify right side
    278,826.12x = 58,295,070,953.22
  5. Step 5: Solve for x
    x = 58,295,070,953.22/278,826.12
  6. Step 6: Final answer
    x = 209,073.21

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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.