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Finding the Fourth Proportional to 250,462.50, 345,673.67 and 154,999.95

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Solution

The fourth proportional to 250,462.50, 345,673.67 and 154,999.95 is: 213,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,462.50 : 345,673.67 = 154,999.95 : x
  2. Step 2: Convert to fraction form
    250,462.50/345,673.67 = 154,999.95/x
  3. Step 3: Cross multiply
    250,462.50x = 345,673.67 × 154,999.95
  4. Step 4: Simplify right side
    250,462.50x = 53,579,401,566.32
  5. Step 5: Solve for x
    x = 53,579,401,566.32/250,462.50
  6. Step 6: Final answer
    x = 213,921.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.