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Finding the Fourth Proportional to 199,041.20, 297,905.70 and 139,992.20

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Solution

The fourth proportional to 199,041.20, 297,905.70 and 139,992.20 is: 209,526.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,041.20 : 297,905.70 = 139,992.20 : x
  2. Step 2: Convert to fraction form
    199,041.20/297,905.70 = 139,992.20/x
  3. Step 3: Cross multiply
    199,041.20x = 297,905.70 × 139,992.20
  4. Step 4: Simplify right side
    199,041.20x = 41,704,474,335.54
  5. Step 5: Solve for x
    x = 41,704,474,335.54/199,041.20
  6. Step 6: Final answer
    x = 209,526.84

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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.