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Finding the Fourth Proportional to 315,578.64, 435,439.88 and 179,604.50

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Solution

The fourth proportional to 315,578.64, 435,439.88 and 179,604.50 is: 247,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,578.64 : 435,439.88 = 179,604.50 : x
  2. Step 2: Convert to fraction form
    315,578.64/435,439.88 = 179,604.50/x
  3. Step 3: Cross multiply
    315,578.64x = 435,439.88 × 179,604.50
  4. Step 4: Simplify right side
    315,578.64x = 78,206,961,927.46
  5. Step 5: Solve for x
    x = 78,206,961,927.46/315,578.64
  6. Step 6: Final answer
    x = 247,820.83

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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.