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Finding the Fourth Proportional to 303,928.80, 456,267.60 and 191,608.80

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Solution

The fourth proportional to 303,928.80, 456,267.60 and 191,608.80 is: 287,649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,928.80 : 456,267.60 = 191,608.80 : x
  2. Step 2: Convert to fraction form
    303,928.80/456,267.60 = 191,608.80/x
  3. Step 3: Cross multiply
    303,928.80x = 456,267.60 × 191,608.80
  4. Step 4: Simplify right side
    303,928.80x = 87,424,887,314.88
  5. Step 5: Solve for x
    x = 87,424,887,314.88/303,928.80
  6. Step 6: Final answer
    x = 287,649.24

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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.