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Finding the Fourth Proportional to 538,226.76, 807,059.88 and 200,990.10

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Solution

The fourth proportional to 538,226.76, 807,059.88 and 200,990.10 is: 301,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,226.76 : 807,059.88 = 200,990.10 : x
  2. Step 2: Convert to fraction form
    538,226.76/807,059.88 = 200,990.10/x
  3. Step 3: Cross multiply
    538,226.76x = 807,059.88 × 200,990.10
  4. Step 4: Simplify right side
    538,226.76x = 162,211,045,987.19
  5. Step 5: Solve for x
    x = 162,211,045,987.19/538,226.76
  6. Step 6: Final answer
    x = 301,380.49

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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.