Home / 280,106.04-420,049.44-97,690.80

Finding the Fourth Proportional to 280,106.04, 420,049.44 and 97,690.80

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Solution

The fourth proportional to 280,106.04, 420,049.44 and 97,690.80 is: 146,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,106.04 : 420,049.44 = 97,690.80 : x
  2. Step 2: Convert to fraction form
    280,106.04/420,049.44 = 97,690.80/x
  3. Step 3: Cross multiply
    280,106.04x = 420,049.44 × 97,690.80
  4. Step 4: Simplify right side
    280,106.04x = 41,034,965,833.15
  5. Step 5: Solve for x
    x = 41,034,965,833.15/280,106.04
  6. Step 6: Final answer
    x = 146,497.97

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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.