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Finding the Fourth Proportional to 540,736.70, 811,096.13 and 161,658.32

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Solution

The fourth proportional to 540,736.70, 811,096.13 and 161,658.32 is: 242,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,736.70 : 811,096.13 = 161,658.32 : x
  2. Step 2: Convert to fraction form
    540,736.70/811,096.13 = 161,658.32/x
  3. Step 3: Cross multiply
    540,736.70x = 811,096.13 × 161,658.32
  4. Step 4: Simplify right side
    540,736.70x = 131,120,434,082.97
  5. Step 5: Solve for x
    x = 131,120,434,082.97/540,736.70
  6. Step 6: Final answer
    x = 242,484.81

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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.