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Finding the Fourth Proportional to 445,571.88, 668,397.12 and 125,726.52

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Solution

The fourth proportional to 445,571.88, 668,397.12 and 125,726.52 is: 188,600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,571.88 : 668,397.12 = 125,726.52 : x
  2. Step 2: Convert to fraction form
    445,571.88/668,397.12 = 125,726.52/x
  3. Step 3: Cross multiply
    445,571.88x = 668,397.12 × 125,726.52
  4. Step 4: Simplify right side
    445,571.88x = 84,035,243,875.62
  5. Step 5: Solve for x
    x = 84,035,243,875.62/445,571.88
  6. Step 6: Final answer
    x = 188,600.87

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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.