Home / 289,019.20-433,520.70-131,247.40

Finding the Fourth Proportional to 289,019.20, 433,520.70 and 131,247.40

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Solution

The fourth proportional to 289,019.20, 433,520.70 and 131,247.40 is: 196,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,019.20 : 433,520.70 = 131,247.40 : x
  2. Step 2: Convert to fraction form
    289,019.20/433,520.70 = 131,247.40/x
  3. Step 3: Cross multiply
    289,019.20x = 433,520.70 × 131,247.40
  4. Step 4: Simplify right side
    289,019.20x = 56,898,464,721.18
  5. Step 5: Solve for x
    x = 56,898,464,721.18/289,019.20
  6. Step 6: Final answer
    x = 196,867.42

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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.