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Finding the Fourth Proportional to 100,300.50, 150,366.87 and 41,178.60

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Solution

The fourth proportional to 100,300.50, 150,366.87 and 41,178.60 is: 61,733.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,300.50 : 150,366.87 = 41,178.60 : x
  2. Step 2: Convert to fraction form
    100,300.50/150,366.87 = 41,178.60/x
  3. Step 3: Cross multiply
    100,300.50x = 150,366.87 × 41,178.60
  4. Step 4: Simplify right side
    100,300.50x = 6,191,897,192.98
  5. Step 5: Solve for x
    x = 6,191,897,192.98/100,300.50
  6. Step 6: Final answer
    x = 61,733.46

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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.