Home / 289,320.90-433,786.95-131,468.10

Finding the Fourth Proportional to 289,320.90, 433,786.95 and 131,468.10

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Solution

The fourth proportional to 289,320.90, 433,786.95 and 131,468.10 is: 197,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,320.90 : 433,786.95 = 131,468.10 : x
  2. Step 2: Convert to fraction form
    289,320.90/433,786.95 = 131,468.10/x
  3. Step 3: Cross multiply
    289,320.90x = 433,786.95 × 131,468.10
  4. Step 4: Simplify right side
    289,320.90x = 57,029,146,121.30
  5. Step 5: Solve for x
    x = 57,029,146,121.30/289,320.90
  6. Step 6: Final answer
    x = 197,113.81

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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.