Home / 498,051.20-747,076.80-218,115.20

Finding the Fourth Proportional to 498,051.20, 747,076.80 and 218,115.20

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Solution

The fourth proportional to 498,051.20, 747,076.80 and 218,115.20 is: 327,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,051.20 : 747,076.80 = 218,115.20 : x
  2. Step 2: Convert to fraction form
    498,051.20/747,076.80 = 218,115.20/x
  3. Step 3: Cross multiply
    498,051.20x = 747,076.80 × 218,115.20
  4. Step 4: Simplify right side
    498,051.20x = 162,948,805,647.36
  5. Step 5: Solve for x
    x = 162,948,805,647.36/498,051.20
  6. Step 6: Final answer
    x = 327,172.80

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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.