Home / 278,402.83-384,196.94-151,078.39

Finding the Fourth Proportional to 278,402.83, 384,196.94 and 151,078.39

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Solution

The fourth proportional to 278,402.83, 384,196.94 and 151,078.39 is: 208,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,402.83 : 384,196.94 = 151,078.39 : x
  2. Step 2: Convert to fraction form
    278,402.83/384,196.94 = 151,078.39/x
  3. Step 3: Cross multiply
    278,402.83x = 384,196.94 × 151,078.39
  4. Step 4: Simplify right side
    278,402.83x = 58,043,855,138.13
  5. Step 5: Solve for x
    x = 58,043,855,138.13/278,402.83
  6. Step 6: Final answer
    x = 208,488.74

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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.