Home / 410,191.11-615,284.09-220,740.72

Finding the Fourth Proportional to 410,191.11, 615,284.09 and 220,740.72

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Solution

The fourth proportional to 410,191.11, 615,284.09 and 220,740.72 is: 331,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,191.11 : 615,284.09 = 220,740.72 : x
  2. Step 2: Convert to fraction form
    410,191.11/615,284.09 = 220,740.72/x
  3. Step 3: Cross multiply
    410,191.11x = 615,284.09 × 220,740.72
  4. Step 4: Simplify right side
    410,191.11x = 135,818,250,389.23
  5. Step 5: Solve for x
    x = 135,818,250,389.23/410,191.11
  6. Step 6: Final answer
    x = 331,109.69

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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.