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Finding the Fourth Proportional to 288,191.66, 431,401.68 and 245,676.38

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Solution

The fourth proportional to 288,191.66, 431,401.68 and 245,676.38 is: 367,759.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,191.66 : 431,401.68 = 245,676.38 : x
  2. Step 2: Convert to fraction form
    288,191.66/431,401.68 = 245,676.38/x
  3. Step 3: Cross multiply
    288,191.66x = 431,401.68 × 245,676.38
  4. Step 4: Simplify right side
    288,191.66x = 105,985,200,911.31
  5. Step 5: Solve for x
    x = 105,985,200,911.31/288,191.66
  6. Step 6: Final answer
    x = 367,759.44

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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.