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Finding the Fourth Proportional to 285,585.56, 428,238.38 and 117,060.05

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Solution

The fourth proportional to 285,585.56, 428,238.38 and 117,060.05 is: 175,532.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,585.56 : 428,238.38 = 117,060.05 : x
  2. Step 2: Convert to fraction form
    285,585.56/428,238.38 = 117,060.05/x
  3. Step 3: Cross multiply
    285,585.56x = 428,238.38 × 117,060.05
  4. Step 4: Simplify right side
    285,585.56x = 50,129,606,174.72
  5. Step 5: Solve for x
    x = 50,129,606,174.72/285,585.56
  6. Step 6: Final answer
    x = 175,532.71

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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.