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Finding the Fourth Proportional to 245,842.30, 343,391.90 and 245,842.30

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Solution

The fourth proportional to 245,842.30, 343,391.90 and 245,842.30 is: 343,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,842.30 : 343,391.90 = 245,842.30 : x
  2. Step 2: Convert to fraction form
    245,842.30/343,391.90 = 245,842.30/x
  3. Step 3: Cross multiply
    245,842.30x = 343,391.90 × 245,842.30
  4. Step 4: Simplify right side
    245,842.30x = 84,420,254,497.37
  5. Step 5: Solve for x
    x = 84,420,254,497.37/245,842.30
  6. Step 6: Final answer
    x = 343,391.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.