Home / 289,145.72-433,748.04-99,581.42

Finding the Fourth Proportional to 289,145.72, 433,748.04 and 99,581.42

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Solution

The fourth proportional to 289,145.72, 433,748.04 and 99,581.42 is: 149,382.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,145.72 : 433,748.04 = 99,581.42 : x
  2. Step 2: Convert to fraction form
    289,145.72/433,748.04 = 99,581.42/x
  3. Step 3: Cross multiply
    289,145.72x = 433,748.04 × 99,581.42
  4. Step 4: Simplify right side
    289,145.72x = 43,193,245,745.42
  5. Step 5: Solve for x
    x = 43,193,245,745.42/289,145.72
  6. Step 6: Final answer
    x = 149,382.28

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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.