Home / 358,748.31-538,147.07-118,861.75

Finding the Fourth Proportional to 358,748.31, 538,147.07 and 118,861.75

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Solution

The fourth proportional to 358,748.31, 538,147.07 and 118,861.75 is: 178,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,748.31 : 538,147.07 = 118,861.75 : x
  2. Step 2: Convert to fraction form
    358,748.31/538,147.07 = 118,861.75/x
  3. Step 3: Cross multiply
    358,748.31x = 538,147.07 × 118,861.75
  4. Step 4: Simplify right side
    358,748.31x = 63,965,102,497.57
  5. Step 5: Solve for x
    x = 63,965,102,497.57/358,748.31
  6. Step 6: Final answer
    x = 178,300.78

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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.