Home / 280,759.15-421,092.57-100,807.32

Finding the Fourth Proportional to 280,759.15, 421,092.57 and 100,807.32

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Solution

The fourth proportional to 280,759.15, 421,092.57 and 100,807.32 is: 151,194.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,759.15 : 421,092.57 = 100,807.32 : x
  2. Step 2: Convert to fraction form
    280,759.15/421,092.57 = 100,807.32/x
  3. Step 3: Cross multiply
    280,759.15x = 421,092.57 × 100,807.32
  4. Step 4: Simplify right side
    280,759.15x = 42,449,213,453.61
  5. Step 5: Solve for x
    x = 42,449,213,453.61/280,759.15
  6. Step 6: Final answer
    x = 151,194.41

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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.