Home / 289,270.11-433,742.67-198,188.31

Finding the Fourth Proportional to 289,270.11, 433,742.67 and 198,188.31

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Solution

The fourth proportional to 289,270.11, 433,742.67 and 198,188.31 is: 297,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,270.11 : 433,742.67 = 198,188.31 : x
  2. Step 2: Convert to fraction form
    289,270.11/433,742.67 = 198,188.31/x
  3. Step 3: Cross multiply
    289,270.11x = 433,742.67 × 198,188.31
  4. Step 4: Simplify right side
    289,270.11x = 85,962,726,742.19
  5. Step 5: Solve for x
    x = 85,962,726,742.19/289,270.11
  6. Step 6: Final answer
    x = 297,171.13

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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.