Home / 280,367.58-420,557.33-100,464.74

Finding the Fourth Proportional to 280,367.58, 420,557.33 and 100,464.74

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Solution

The fourth proportional to 280,367.58, 420,557.33 and 100,464.74 is: 150,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,367.58 : 420,557.33 = 100,464.74 : x
  2. Step 2: Convert to fraction form
    280,367.58/420,557.33 = 100,464.74/x
  3. Step 3: Cross multiply
    280,367.58x = 420,557.33 × 100,464.74
  4. Step 4: Simplify right side
    280,367.58x = 42,251,182,813.54
  5. Step 5: Solve for x
    x = 42,251,182,813.54/280,367.58
  6. Step 6: Final answer
    x = 150,699.25

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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.