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Finding the Fourth Proportional to 525,796.20, 788,888.70 and 170,821.80

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Solution

The fourth proportional to 525,796.20, 788,888.70 and 170,821.80 is: 256,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,796.20 : 788,888.70 = 170,821.80 : x
  2. Step 2: Convert to fraction form
    525,796.20/788,888.70 = 170,821.80/x
  3. Step 3: Cross multiply
    525,796.20x = 788,888.70 × 170,821.80
  4. Step 4: Simplify right side
    525,796.20x = 134,759,387,733.66
  5. Step 5: Solve for x
    x = 134,759,387,733.66/525,796.20
  6. Step 6: Final answer
    x = 256,295.86

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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.