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Finding the Fourth Proportional to 278,484.60, 384,298.44 and 151,157.48

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Solution

The fourth proportional to 278,484.60, 384,298.44 and 151,157.48 is: 208,591.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,484.60 : 384,298.44 = 151,157.48 : x
  2. Step 2: Convert to fraction form
    278,484.60/384,298.44 = 151,157.48/x
  3. Step 3: Cross multiply
    278,484.60x = 384,298.44 × 151,157.48
  4. Step 4: Simplify right side
    278,484.60x = 58,089,583,758.33
  5. Step 5: Solve for x
    x = 58,089,583,758.33/278,484.60
  6. Step 6: Final answer
    x = 208,591.73

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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.