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Finding the Fourth Proportional to 287,282.45, 429,873.91 and 169,009.49

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Solution

The fourth proportional to 287,282.45, 429,873.91 and 169,009.49 is: 252,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,282.45 : 429,873.91 = 169,009.49 : x
  2. Step 2: Convert to fraction form
    287,282.45/429,873.91 = 169,009.49/x
  3. Step 3: Cross multiply
    287,282.45x = 429,873.91 × 169,009.49
  4. Step 4: Simplify right side
    287,282.45x = 72,652,770,945.57
  5. Step 5: Solve for x
    x = 72,652,770,945.57/287,282.45
  6. Step 6: Final answer
    x = 252,896.65

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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.