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Finding the Fourth Proportional to 345,957.20, 518,526.20 and 146,277.20

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Solution

The fourth proportional to 345,957.20, 518,526.20 and 146,277.20 is: 219,242.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,957.20 : 518,526.20 = 146,277.20 : x
  2. Step 2: Convert to fraction form
    345,957.20/518,526.20 = 146,277.20/x
  3. Step 3: Cross multiply
    345,957.20x = 518,526.20 × 146,277.20
  4. Step 4: Simplify right side
    345,957.20x = 75,848,560,662.64
  5. Step 5: Solve for x
    x = 75,848,560,662.64/345,957.20
  6. Step 6: Final answer
    x = 219,242.61

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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.