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Finding the Fourth Proportional to 275,567.06, 380,261.50 and 154,685

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Solution

The fourth proportional to 275,567.06, 380,261.50 and 154,685 is: 213,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,567.06 : 380,261.50 = 154,685 : x
  2. Step 2: Convert to fraction form
    275,567.06/380,261.50 = 154,685/x
  3. Step 3: Cross multiply
    275,567.06x = 380,261.50 × 154,685
  4. Step 4: Simplify right side
    275,567.06x = 58,820,750,127.50
  5. Step 5: Solve for x
    x = 58,820,750,127.50/275,567.06
  6. Step 6: Final answer
    x = 213,453.49

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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.