Home / 231,327.10-347,509.05-221,880.70

Finding the Fourth Proportional to 231,327.10, 347,509.05 and 221,880.70

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Solution

The fourth proportional to 231,327.10, 347,509.05 and 221,880.70 is: 333,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,327.10 : 347,509.05 = 221,880.70 : x
  2. Step 2: Convert to fraction form
    231,327.10/347,509.05 = 221,880.70/x
  3. Step 3: Cross multiply
    231,327.10x = 347,509.05 × 221,880.70
  4. Step 4: Simplify right side
    231,327.10x = 77,105,551,270.34
  5. Step 5: Solve for x
    x = 77,105,551,270.34/231,327.10
  6. Step 6: Final answer
    x = 333,318.28

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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.