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Finding the Fourth Proportional to 500,605.06, 751,005.60 and 220,121.50

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Solution

The fourth proportional to 500,605.06, 751,005.60 and 220,121.50 is: 330,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,605.06 : 751,005.60 = 220,121.50 : x
  2. Step 2: Convert to fraction form
    500,605.06/751,005.60 = 220,121.50/x
  3. Step 3: Cross multiply
    500,605.06x = 751,005.60 × 220,121.50
  4. Step 4: Simplify right side
    500,605.06x = 165,312,479,180.40
  5. Step 5: Solve for x
    x = 165,312,479,180.40/500,605.06
  6. Step 6: Final answer
    x = 330,225.35

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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.