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Finding the Fourth Proportional to 303,798.94, 455,387.37 and 126,408.94

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Solution

The fourth proportional to 303,798.94, 455,387.37 and 126,408.94 is: 189,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,798.94 : 455,387.37 = 126,408.94 : x
  2. Step 2: Convert to fraction form
    303,798.94/455,387.37 = 126,408.94/x
  3. Step 3: Cross multiply
    303,798.94x = 455,387.37 × 126,408.94
  4. Step 4: Simplify right side
    303,798.94x = 57,565,033,118.59
  5. Step 5: Solve for x
    x = 57,565,033,118.59/303,798.94
  6. Step 6: Final answer
    x = 189,483.98

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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.