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Finding the Fourth Proportional to 358,741.92, 538,119.36 and 92,508

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Solution

The fourth proportional to 358,741.92, 538,119.36 and 92,508 is: 138,763.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,741.92 : 538,119.36 = 92,508 : x
  2. Step 2: Convert to fraction form
    358,741.92/538,119.36 = 92,508/x
  3. Step 3: Cross multiply
    358,741.92x = 538,119.36 × 92,508
  4. Step 4: Simplify right side
    358,741.92x = 49,780,345,754.88
  5. Step 5: Solve for x
    x = 49,780,345,754.88/358,741.92
  6. Step 6: Final answer
    x = 138,763.67

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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.