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Finding the Fourth Proportional to 289,655.56, 399,740.46 and 162,372.04

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Solution

The fourth proportional to 289,655.56, 399,740.46 and 162,372.04 is: 224,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,655.56 : 399,740.46 = 162,372.04 : x
  2. Step 2: Convert to fraction form
    289,655.56/399,740.46 = 162,372.04/x
  3. Step 3: Cross multiply
    289,655.56x = 399,740.46 × 162,372.04
  4. Step 4: Simplify right side
    289,655.56x = 64,906,673,960.74
  5. Step 5: Solve for x
    x = 64,906,673,960.74/289,655.56
  6. Step 6: Final answer
    x = 224,082.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.