Home / 280,165.36-386,575.32-166,998.64

Finding the Fourth Proportional to 280,165.36, 386,575.32 and 166,998.64

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Solution

The fourth proportional to 280,165.36, 386,575.32 and 166,998.64 is: 230,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,165.36 : 386,575.32 = 166,998.64 : x
  2. Step 2: Convert to fraction form
    280,165.36/386,575.32 = 166,998.64/x
  3. Step 3: Cross multiply
    280,165.36x = 386,575.32 × 166,998.64
  4. Step 4: Simplify right side
    280,165.36x = 64,557,552,697.56
  5. Step 5: Solve for x
    x = 64,557,552,697.56/280,165.36
  6. Step 6: Final answer
    x = 230,426.60

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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.