Home / 266,885.20-400,328.06-109,113.65

Finding the Fourth Proportional to 266,885.20, 400,328.06 and 109,113.65

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Solution

The fourth proportional to 266,885.20, 400,328.06 and 109,113.65 is: 163,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,885.20 : 400,328.06 = 109,113.65 : x
  2. Step 2: Convert to fraction form
    266,885.20/400,328.06 = 109,113.65/x
  3. Step 3: Cross multiply
    266,885.20x = 400,328.06 × 109,113.65
  4. Step 4: Simplify right side
    266,885.20x = 43,681,255,824.02
  5. Step 5: Solve for x
    x = 43,681,255,824.02/266,885.20
  6. Step 6: Final answer
    x = 163,670.58

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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.