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Finding the Fourth Proportional to 300,218.59, 450,203.28 and 110,689.80

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Solution

The fourth proportional to 300,218.59, 450,203.28 and 110,689.80 is: 165,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,218.59 : 450,203.28 = 110,689.80 : x
  2. Step 2: Convert to fraction form
    300,218.59/450,203.28 = 110,689.80/x
  3. Step 3: Cross multiply
    300,218.59x = 450,203.28 × 110,689.80
  4. Step 4: Simplify right side
    300,218.59x = 49,832,911,022.54
  5. Step 5: Solve for x
    x = 49,832,911,022.54/300,218.59
  6. Step 6: Final answer
    x = 165,988.76

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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.