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Finding the Fourth Proportional to 643,342.16, 964,866.36 and 244,027.28

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Solution

The fourth proportional to 643,342.16, 964,866.36 and 244,027.28 is: 365,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,342.16 : 964,866.36 = 244,027.28 : x
  2. Step 2: Convert to fraction form
    643,342.16/964,866.36 = 244,027.28/x
  3. Step 3: Cross multiply
    643,342.16x = 964,866.36 × 244,027.28
  4. Step 4: Simplify right side
    643,342.16x = 235,453,713,394.30
  5. Step 5: Solve for x
    x = 235,453,713,394.30/643,342.16
  6. Step 6: Final answer
    x = 365,985.21

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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.