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Finding the Fourth Proportional to 247,872.72, 370,890.54 and 148,087.20

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Solution

The fourth proportional to 247,872.72, 370,890.54 and 148,087.20 is: 221,582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,872.72 : 370,890.54 = 148,087.20 : x
  2. Step 2: Convert to fraction form
    247,872.72/370,890.54 = 148,087.20/x
  3. Step 3: Cross multiply
    247,872.72x = 370,890.54 × 148,087.20
  4. Step 4: Simplify right side
    247,872.72x = 54,924,141,575.09
  5. Step 5: Solve for x
    x = 54,924,141,575.09/247,872.72
  6. Step 6: Final answer
    x = 221,582.03

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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.