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Finding the Fourth Proportional to 303,649.13, 455,162.64 and 126,259.13

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Solution

The fourth proportional to 303,649.13, 455,162.64 and 126,259.13 is: 189,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,649.13 : 455,162.64 = 126,259.13 : x
  2. Step 2: Convert to fraction form
    303,649.13/455,162.64 = 126,259.13/x
  3. Step 3: Cross multiply
    303,649.13x = 455,162.64 × 126,259.13
  4. Step 4: Simplify right side
    303,649.13x = 57,468,436,659.09
  5. Step 5: Solve for x
    x = 57,468,436,659.09/303,649.13
  6. Step 6: Final answer
    x = 189,259.35

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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.