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Finding the Fourth Proportional to 297,029.20, 445,543.80 and 217,313.05

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Solution

The fourth proportional to 297,029.20, 445,543.80 and 217,313.05 is: 325,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,029.20 : 445,543.80 = 217,313.05 : x
  2. Step 2: Convert to fraction form
    297,029.20/445,543.80 = 217,313.05/x
  3. Step 3: Cross multiply
    297,029.20x = 445,543.80 × 217,313.05
  4. Step 4: Simplify right side
    297,029.20x = 96,822,482,086.59
  5. Step 5: Solve for x
    x = 96,822,482,086.59/297,029.20
  6. Step 6: Final answer
    x = 325,969.58

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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.