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Finding the Fourth Proportional to 538,288.32, 807,579.36 and 159,227.76

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Solution

The fourth proportional to 538,288.32, 807,579.36 and 159,227.76 is: 238,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,288.32 : 807,579.36 = 159,227.76 : x
  2. Step 2: Convert to fraction form
    538,288.32/807,579.36 = 159,227.76/x
  3. Step 3: Cross multiply
    538,288.32x = 807,579.36 × 159,227.76
  4. Step 4: Simplify right side
    538,288.32x = 128,589,052,515.03
  5. Step 5: Solve for x
    x = 128,589,052,515.03/538,288.32
  6. Step 6: Final answer
    x = 238,885.09

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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.