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Finding the Fourth Proportional to 410,191.80, 615,633.30 and 200,009.40

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Solution

The fourth proportional to 410,191.80, 615,633.30 and 200,009.40 is: 300,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,191.80 : 615,633.30 = 200,009.40 : x
  2. Step 2: Convert to fraction form
    410,191.80/615,633.30 = 200,009.40/x
  3. Step 3: Cross multiply
    410,191.80x = 615,633.30 × 200,009.40
  4. Step 4: Simplify right side
    410,191.80x = 123,132,446,953.02
  5. Step 5: Solve for x
    x = 123,132,446,953.02/410,191.80
  6. Step 6: Final answer
    x = 300,182.61

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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.