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Finding the Fourth Proportional to 500,968.31, 751,379.54 and 145,886.99

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Solution

The fourth proportional to 500,968.31, 751,379.54 and 145,886.99 is: 218,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,968.31 : 751,379.54 = 145,886.99 : x
  2. Step 2: Convert to fraction form
    500,968.31/751,379.54 = 145,886.99/x
  3. Step 3: Cross multiply
    500,968.31x = 751,379.54 × 145,886.99
  4. Step 4: Simplify right side
    500,968.31x = 109,616,494,951.85
  5. Step 5: Solve for x
    x = 109,616,494,951.85/500,968.31
  6. Step 6: Final answer
    x = 218,809.24

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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.