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Finding the Fourth Proportional to 307,487.45, 461,033.59 and 127,696.89

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Solution

The fourth proportional to 307,487.45, 461,033.59 and 127,696.89 is: 191,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,487.45 : 461,033.59 = 127,696.89 : x
  2. Step 2: Convert to fraction form
    307,487.45/461,033.59 = 127,696.89/x
  3. Step 3: Cross multiply
    307,487.45x = 461,033.59 × 127,696.89
  4. Step 4: Simplify right side
    307,487.45x = 58,872,555,628.54
  5. Step 5: Solve for x
    x = 58,872,555,628.54/307,487.45
  6. Step 6: Final answer
    x = 191,463.28

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1.5x scale

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.