Home / 289,168.60-433,623.30-131,315.80

Finding the Fourth Proportional to 289,168.60, 433,623.30 and 131,315.80

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Solution

The fourth proportional to 289,168.60, 433,623.30 and 131,315.80 is: 196,914.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,168.60 : 433,623.30 = 131,315.80 : x
  2. Step 2: Convert to fraction form
    289,168.60/433,623.30 = 131,315.80/x
  3. Step 3: Cross multiply
    289,168.60x = 433,623.30 × 131,315.80
  4. Step 4: Simplify right side
    289,168.60x = 56,941,590,538.14
  5. Step 5: Solve for x
    x = 56,941,590,538.14/289,168.60
  6. Step 6: Final answer
    x = 196,914.85

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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.