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Finding the Fourth Proportional to 299,979.60, 450,094.47 and 131,620.92

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Solution

The fourth proportional to 299,979.60, 450,094.47 and 131,620.92 is: 197,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,979.60 : 450,094.47 = 131,620.92 : x
  2. Step 2: Convert to fraction form
    299,979.60/450,094.47 = 131,620.92/x
  3. Step 3: Cross multiply
    299,979.60x = 450,094.47 × 131,620.92
  4. Step 4: Simplify right side
    299,979.60x = 59,241,848,228.31
  5. Step 5: Solve for x
    x = 59,241,848,228.31/299,979.60
  6. Step 6: Final answer
    x = 197,486.26

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1.5x scale

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.