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Finding the Fourth Proportional to 289,803.02, 434,706.03 and 131,921.06

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Solution

The fourth proportional to 289,803.02, 434,706.03 and 131,921.06 is: 197,882.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,803.02 : 434,706.03 = 131,921.06 : x
  2. Step 2: Convert to fraction form
    289,803.02/434,706.03 = 131,921.06/x
  3. Step 3: Cross multiply
    289,803.02x = 434,706.03 × 131,921.06
  4. Step 4: Simplify right side
    289,803.02x = 57,346,880,265.99
  5. Step 5: Solve for x
    x = 57,346,880,265.99/289,803.02
  6. Step 6: Final answer
    x = 197,882.27

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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.