Home / 288,919.20-433,370.70-131,147.40

Finding the Fourth Proportional to 288,919.20, 433,370.70 and 131,147.40

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Solution

The fourth proportional to 288,919.20, 433,370.70 and 131,147.40 is: 196,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,919.20 : 433,370.70 = 131,147.40 : x
  2. Step 2: Convert to fraction form
    288,919.20/433,370.70 = 131,147.40/x
  3. Step 3: Cross multiply
    288,919.20x = 433,370.70 × 131,147.40
  4. Step 4: Simplify right side
    288,919.20x = 56,835,440,541.18
  5. Step 5: Solve for x
    x = 56,835,440,541.18/288,919.20
  6. Step 6: Final answer
    x = 196,717.42

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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.