Home / 278,749.60-418,124.40-274,141.60

Finding the Fourth Proportional to 278,749.60, 418,124.40 and 274,141.60

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Solution

The fourth proportional to 278,749.60, 418,124.40 and 274,141.60 is: 411,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,749.60 : 418,124.40 = 274,141.60 : x
  2. Step 2: Convert to fraction form
    278,749.60/418,124.40 = 274,141.60/x
  3. Step 3: Cross multiply
    278,749.60x = 418,124.40 × 274,141.60
  4. Step 4: Simplify right side
    278,749.60x = 114,625,292,015.04
  5. Step 5: Solve for x
    x = 114,625,292,015.04/278,749.60
  6. Step 6: Final answer
    x = 411,212.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.