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Finding the Fourth Proportional to 278,269.80, 417,404.70 and 278,269.80

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Solution

The fourth proportional to 278,269.80, 417,404.70 and 278,269.80 is: 417,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,269.80 : 417,404.70 = 278,269.80 : x
  2. Step 2: Convert to fraction form
    278,269.80/417,404.70 = 278,269.80/x
  3. Step 3: Cross multiply
    278,269.80x = 417,404.70 × 278,269.80
  4. Step 4: Simplify right side
    278,269.80x = 116,151,122,388.06
  5. Step 5: Solve for x
    x = 116,151,122,388.06/278,269.80
  6. Step 6: Final answer
    x = 417,404.70

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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.