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Finding the Fourth Proportional to 499,279.30, 749,016.15 and 214,969.30

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Solution

The fourth proportional to 499,279.30, 749,016.15 and 214,969.30 is: 322,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,279.30 : 749,016.15 = 214,969.30 : x
  2. Step 2: Convert to fraction form
    499,279.30/749,016.15 = 214,969.30/x
  3. Step 3: Cross multiply
    499,279.30x = 749,016.15 × 214,969.30
  4. Step 4: Simplify right side
    499,279.30x = 161,015,477,454.20
  5. Step 5: Solve for x
    x = 161,015,477,454.20/499,279.30
  6. Step 6: Final answer
    x = 322,495.80

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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.