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Finding the Fourth Proportional to 188,649.21, 282,905.34 and 103,323.45

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Solution

The fourth proportional to 188,649.21, 282,905.34 and 103,323.45 is: 154,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,649.21 : 282,905.34 = 103,323.45 : x
  2. Step 2: Convert to fraction form
    188,649.21/282,905.34 = 103,323.45/x
  3. Step 3: Cross multiply
    188,649.21x = 282,905.34 × 103,323.45
  4. Step 4: Simplify right side
    188,649.21x = 29,230,755,752.22
  5. Step 5: Solve for x
    x = 29,230,755,752.22/188,649.21
  6. Step 6: Final answer
    x = 154,947.67

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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.