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Finding the Fourth Proportional to 550,231.20, 824,866.80 and 213,501.60

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Solution

The fourth proportional to 550,231.20, 824,866.80 and 213,501.60 is: 320,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,231.20 : 824,866.80 = 213,501.60 : x
  2. Step 2: Convert to fraction form
    550,231.20/824,866.80 = 213,501.60/x
  3. Step 3: Cross multiply
    550,231.20x = 824,866.80 × 213,501.60
  4. Step 4: Simplify right side
    550,231.20x = 176,110,381,586.88
  5. Step 5: Solve for x
    x = 176,110,381,586.88/550,231.20
  6. Step 6: Final answer
    x = 320,066.15

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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.