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Finding the Fourth Proportional to 245,047.40, 343,766.20 and 245,047.40

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Solution

The fourth proportional to 245,047.40, 343,766.20 and 245,047.40 is: 343,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,047.40 : 343,766.20 = 245,047.40 : x
  2. Step 2: Convert to fraction form
    245,047.40/343,766.20 = 245,047.40/x
  3. Step 3: Cross multiply
    245,047.40x = 343,766.20 × 245,047.40
  4. Step 4: Simplify right side
    245,047.40x = 84,239,013,517.88
  5. Step 5: Solve for x
    x = 84,239,013,517.88/245,047.40
  6. Step 6: Final answer
    x = 343,766.20

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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.