Home / 281,091.42-420,961.41-160,783.74

Finding the Fourth Proportional to 281,091.42, 420,961.41 and 160,783.74

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Solution

The fourth proportional to 281,091.42, 420,961.41 and 160,783.74 is: 240,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,091.42 : 420,961.41 = 160,783.74 : x
  2. Step 2: Convert to fraction form
    281,091.42/420,961.41 = 160,783.74/x
  3. Step 3: Cross multiply
    281,091.42x = 420,961.41 × 160,783.74
  4. Step 4: Simplify right side
    281,091.42x = 67,683,749,895.47
  5. Step 5: Solve for x
    x = 67,683,749,895.47/281,091.42
  6. Step 6: Final answer
    x = 240,789.10

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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.