Home / 289,254.40-433,687.20-131,401.60

Finding the Fourth Proportional to 289,254.40, 433,687.20 and 131,401.60

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Solution

The fourth proportional to 289,254.40, 433,687.20 and 131,401.60 is: 197,014.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,254.40 : 433,687.20 = 131,401.60 : x
  2. Step 2: Convert to fraction form
    289,254.40/433,687.20 = 131,401.60/x
  3. Step 3: Cross multiply
    289,254.40x = 433,687.20 × 131,401.60
  4. Step 4: Simplify right side
    289,254.40x = 56,987,191,979.52
  5. Step 5: Solve for x
    x = 56,987,191,979.52/289,254.40
  6. Step 6: Final answer
    x = 197,014.09

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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.