Home / 280,102.32-386,525.48-159,226.56

Finding the Fourth Proportional to 280,102.32, 386,525.48 and 159,226.56

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Solution

The fourth proportional to 280,102.32, 386,525.48 and 159,226.56 is: 219,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,102.32 : 386,525.48 = 159,226.56 : x
  2. Step 2: Convert to fraction form
    280,102.32/386,525.48 = 159,226.56/x
  3. Step 3: Cross multiply
    280,102.32x = 386,525.48 × 159,226.56
  4. Step 4: Simplify right side
    280,102.32x = 61,545,122,532.75
  5. Step 5: Solve for x
    x = 61,545,122,532.75/280,102.32
  6. Step 6: Final answer
    x = 219,723.72

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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.