Home / 289,103.20-433,784.40-131,250.40

Finding the Fourth Proportional to 289,103.20, 433,784.40 and 131,250.40

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Solution

The fourth proportional to 289,103.20, 433,784.40 and 131,250.40 is: 196,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,103.20 : 433,784.40 = 131,250.40 : x
  2. Step 2: Convert to fraction form
    289,103.20/433,784.40 = 131,250.40/x
  3. Step 3: Cross multiply
    289,103.20x = 433,784.40 × 131,250.40
  4. Step 4: Simplify right side
    289,103.20x = 56,934,376,013.76
  5. Step 5: Solve for x
    x = 56,934,376,013.76/289,103.20
  6. Step 6: Final answer
    x = 196,934.44

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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.