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Finding the Fourth Proportional to 480,133.83, 720,201.30 and 125,147.55

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Solution

The fourth proportional to 480,133.83, 720,201.30 and 125,147.55 is: 187,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,133.83 : 720,201.30 = 125,147.55 : x
  2. Step 2: Convert to fraction form
    480,133.83/720,201.30 = 125,147.55/x
  3. Step 3: Cross multiply
    480,133.83x = 720,201.30 × 125,147.55
  4. Step 4: Simplify right side
    480,133.83x = 90,131,428,201.82
  5. Step 5: Solve for x
    x = 90,131,428,201.82/480,133.83
  6. Step 6: Final answer
    x = 187,721.47

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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.