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Finding the Fourth Proportional to 300,721.64, 414,996.19 and 162,900.89

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Solution

The fourth proportional to 300,721.64, 414,996.19 and 162,900.89 is: 224,803.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,721.64 : 414,996.19 = 162,900.89 : x
  2. Step 2: Convert to fraction form
    300,721.64/414,996.19 = 162,900.89/x
  3. Step 3: Cross multiply
    300,721.64x = 414,996.19 × 162,900.89
  4. Step 4: Simplify right side
    300,721.64x = 67,603,248,697.61
  5. Step 5: Solve for x
    x = 67,603,248,697.61/300,721.64
  6. Step 6: Final answer
    x = 224,803.41

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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.