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Finding the Fourth Proportional to 613,866.32, 920,877.24 and 170,634.32

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Solution

The fourth proportional to 613,866.32, 920,877.24 and 170,634.32 is: 255,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,866.32 : 920,877.24 = 170,634.32 : x
  2. Step 2: Convert to fraction form
    613,866.32/920,877.24 = 170,634.32/x
  3. Step 3: Cross multiply
    613,866.32x = 920,877.24 × 170,634.32
  4. Step 4: Simplify right side
    613,866.32x = 157,133,261,650.88
  5. Step 5: Solve for x
    x = 157,133,261,650.88/613,866.32
  6. Step 6: Final answer
    x = 255,973.09

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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.