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Finding the Fourth Proportional to 179,557.50, 269,336.25 and 68,749.50

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Solution

The fourth proportional to 179,557.50, 269,336.25 and 68,749.50 is: 103,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,557.50 : 269,336.25 = 68,749.50 : x
  2. Step 2: Convert to fraction form
    179,557.50/269,336.25 = 68,749.50/x
  3. Step 3: Cross multiply
    179,557.50x = 269,336.25 × 68,749.50
  4. Step 4: Simplify right side
    179,557.50x = 18,516,732,519.38
  5. Step 5: Solve for x
    x = 18,516,732,519.38/179,557.50
  6. Step 6: Final answer
    x = 103,124.25

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1.5x scale

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.