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Finding the Fourth Proportional to 642,150.64, 963,235.48 and 305,225.94

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Solution

The fourth proportional to 642,150.64, 963,235.48 and 305,225.94 is: 457,843.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,150.64 : 963,235.48 = 305,225.94 : x
  2. Step 2: Convert to fraction form
    642,150.64/963,235.48 = 305,225.94/x
  3. Step 3: Cross multiply
    642,150.64x = 963,235.48 × 305,225.94
  4. Step 4: Simplify right side
    642,150.64x = 294,004,454,824.35
  5. Step 5: Solve for x
    x = 294,004,454,824.35/642,150.64
  6. Step 6: Final answer
    x = 457,843.44

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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.