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Finding the Fourth Proportional to 538,489.08, 807,731.46 and 201,555

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Solution

The fourth proportional to 538,489.08, 807,731.46 and 201,555 is: 302,331.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,489.08 : 807,731.46 = 201,555 : x
  2. Step 2: Convert to fraction form
    538,489.08/807,731.46 = 201,555/x
  3. Step 3: Cross multiply
    538,489.08x = 807,731.46 × 201,555
  4. Step 4: Simplify right side
    538,489.08x = 162,802,314,420.30
  5. Step 5: Solve for x
    x = 162,802,314,420.30/538,489.08
  6. Step 6: Final answer
    x = 302,331.69

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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.