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Finding the Fourth Proportional to 538,183.70, 807,305.01 and 218,288.07

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Solution

The fourth proportional to 538,183.70, 807,305.01 and 218,288.07 is: 327,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,183.70 : 807,305.01 = 218,288.07 : x
  2. Step 2: Convert to fraction form
    538,183.70/807,305.01 = 218,288.07/x
  3. Step 3: Cross multiply
    538,183.70x = 807,305.01 × 218,288.07
  4. Step 4: Simplify right side
    538,183.70x = 176,225,052,534.23
  5. Step 5: Solve for x
    x = 176,225,052,534.23/538,183.70
  6. Step 6: Final answer
    x = 327,444.05

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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.