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Finding the Fourth Proportional to 345,622.47, 518,754.47 and 177,267.21

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Solution

The fourth proportional to 345,622.47, 518,754.47 and 177,267.21 is: 266,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,622.47 : 518,754.47 = 177,267.21 : x
  2. Step 2: Convert to fraction form
    345,622.47/518,754.47 = 177,267.21/x
  3. Step 3: Cross multiply
    345,622.47x = 518,754.47 × 177,267.21
  4. Step 4: Simplify right side
    345,622.47x = 91,958,156,685.59
  5. Step 5: Solve for x
    x = 91,958,156,685.59/345,622.47
  6. Step 6: Final answer
    x = 266,065.33

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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.