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Finding the Fourth Proportional to 100,353.72, 150,536.34 and 30,225.72

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Solution

The fourth proportional to 100,353.72, 150,536.34 and 30,225.72 is: 45,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,353.72 : 150,536.34 = 30,225.72 : x
  2. Step 2: Convert to fraction form
    100,353.72/150,536.34 = 30,225.72/x
  3. Step 3: Cross multiply
    100,353.72x = 150,536.34 × 30,225.72
  4. Step 4: Simplify right side
    100,353.72x = 4,550,069,262.66
  5. Step 5: Solve for x
    x = 4,550,069,262.66/100,353.72
  6. Step 6: Final answer
    x = 45,340.31

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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.