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Finding the Fourth Proportional to 278,609.97, 384,483.33 and 151,285.60

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Solution

The fourth proportional to 278,609.97, 384,483.33 and 151,285.60 is: 208,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,609.97 : 384,483.33 = 151,285.60 : x
  2. Step 2: Convert to fraction form
    278,609.97/384,483.33 = 151,285.60/x
  3. Step 3: Cross multiply
    278,609.97x = 384,483.33 × 151,285.60
  4. Step 4: Simplify right side
    278,609.97x = 58,166,791,269.05
  5. Step 5: Solve for x
    x = 58,166,791,269.05/278,609.97
  6. Step 6: Final answer
    x = 208,774.98

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1.5x scale

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.