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Finding the Fourth Proportional to 481,655.78, 664,706.86 and 266,795.82

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Solution

The fourth proportional to 481,655.78, 664,706.86 and 266,795.82 is: 368,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,655.78 : 664,706.86 = 266,795.82 : x
  2. Step 2: Convert to fraction form
    481,655.78/664,706.86 = 266,795.82/x
  3. Step 3: Cross multiply
    481,655.78x = 664,706.86 × 266,795.82
  4. Step 4: Simplify right side
    481,655.78x = 177,341,011,106.34
  5. Step 5: Solve for x
    x = 177,341,011,106.34/481,655.78
  6. Step 6: Final answer
    x = 368,190.35

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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.