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Finding the Fourth Proportional to 445,567.50, 668,390.52 and 125,722.20

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Solution

The fourth proportional to 445,567.50, 668,390.52 and 125,722.20 is: 188,594.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,567.50 : 668,390.52 = 125,722.20 : x
  2. Step 2: Convert to fraction form
    445,567.50/668,390.52 = 125,722.20/x
  3. Step 3: Cross multiply
    445,567.50x = 668,390.52 × 125,722.20
  4. Step 4: Simplify right side
    445,567.50x = 84,031,526,633.54
  5. Step 5: Solve for x
    x = 84,031,526,633.54/445,567.50
  6. Step 6: Final answer
    x = 188,594.38

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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.