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Finding the Fourth Proportional to 315,628.44, 435,549.60 and 179,695.50

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Solution

The fourth proportional to 315,628.44, 435,549.60 and 179,695.50 is: 247,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,628.44 : 435,549.60 = 179,695.50 : x
  2. Step 2: Convert to fraction form
    315,628.44/435,549.60 = 179,695.50/x
  3. Step 3: Cross multiply
    315,628.44x = 435,549.60 × 179,695.50
  4. Step 4: Simplify right side
    315,628.44x = 78,266,303,146.80
  5. Step 5: Solve for x
    x = 78,266,303,146.80/315,628.44
  6. Step 6: Final answer
    x = 247,969.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.