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Finding the Fourth Proportional to 561,346.20, 841,760.10 and 245,640.60

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Solution

The fourth proportional to 561,346.20, 841,760.10 and 245,640.60 is: 368,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,346.20 : 841,760.10 = 245,640.60 : x
  2. Step 2: Convert to fraction form
    561,346.20/841,760.10 = 245,640.60/x
  3. Step 3: Cross multiply
    561,346.20x = 841,760.10 × 245,640.60
  4. Step 4: Simplify right side
    561,346.20x = 206,770,456,020.06
  5. Step 5: Solve for x
    x = 206,770,456,020.06/561,346.20
  6. Step 6: Final answer
    x = 368,347.48

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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.