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Finding the Fourth Proportional to 240,980.57, 361,546.40 and 145,022.50

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Solution

The fourth proportional to 240,980.57, 361,546.40 and 145,022.50 is: 217,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,980.57 : 361,546.40 = 145,022.50 : x
  2. Step 2: Convert to fraction form
    240,980.57/361,546.40 = 145,022.50/x
  3. Step 3: Cross multiply
    240,980.57x = 361,546.40 × 145,022.50
  4. Step 4: Simplify right side
    240,980.57x = 52,432,363,608.49
  5. Step 5: Solve for x
    x = 52,432,363,608.49/240,980.57
  6. Step 6: Final answer
    x = 217,579.22

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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.