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Finding the Fourth Proportional to 550,288.89, 825,489.90 and 190,459.04

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Solution

The fourth proportional to 550,288.89, 825,489.90 and 190,459.04 is: 285,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,288.89 : 825,489.90 = 190,459.04 : x
  2. Step 2: Convert to fraction form
    550,288.89/825,489.90 = 190,459.04/x
  3. Step 3: Cross multiply
    550,288.89x = 825,489.90 × 190,459.04
  4. Step 4: Simplify right side
    550,288.89x = 157,222,009,756.25
  5. Step 5: Solve for x
    x = 157,222,009,756.25/550,288.89
  6. Step 6: Final answer
    x = 285,708.13

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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.