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Finding the Fourth Proportional to 340,861.70, 511,292.55 and 241,328.90

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Solution

The fourth proportional to 340,861.70, 511,292.55 and 241,328.90 is: 361,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,861.70 : 511,292.55 = 241,328.90 : x
  2. Step 2: Convert to fraction form
    340,861.70/511,292.55 = 241,328.90/x
  3. Step 3: Cross multiply
    340,861.70x = 511,292.55 × 241,328.90
  4. Step 4: Simplify right side
    340,861.70x = 123,389,668,669.70
  5. Step 5: Solve for x
    x = 123,389,668,669.70/340,861.70
  6. Step 6: Final answer
    x = 361,993.35

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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.