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Finding the Fourth Proportional to 644,346.92, 966,150 and 265,529.15

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Solution

The fourth proportional to 644,346.92, 966,150 and 265,529.15 is: 398,141.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,346.92 : 966,150 = 265,529.15 : x
  2. Step 2: Convert to fraction form
    644,346.92/966,150 = 265,529.15/x
  3. Step 3: Cross multiply
    644,346.92x = 966,150 × 265,529.15
  4. Step 4: Simplify right side
    644,346.92x = 256,540,988,272.50
  5. Step 5: Solve for x
    x = 256,540,988,272.50/644,346.92
  6. Step 6: Final answer
    x = 398,141.09

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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.