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Finding the Fourth Proportional to 325,469.79, 487,860.22 and 148,101.36

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Solution

The fourth proportional to 325,469.79, 487,860.22 and 148,101.36 is: 221,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,469.79 : 487,860.22 = 148,101.36 : x
  2. Step 2: Convert to fraction form
    325,469.79/487,860.22 = 148,101.36/x
  3. Step 3: Cross multiply
    325,469.79x = 487,860.22 × 148,101.36
  4. Step 4: Simplify right side
    325,469.79x = 72,252,762,071.90
  5. Step 5: Solve for x
    x = 72,252,762,071.90/325,469.79
  6. Step 6: Final answer
    x = 221,995.30

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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.