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Finding the Fourth Proportional to 245,107.40, 367,661.10 and 161,126.60

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Solution

The fourth proportional to 245,107.40, 367,661.10 and 161,126.60 is: 241,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,107.40 : 367,661.10 = 161,126.60 : x
  2. Step 2: Convert to fraction form
    245,107.40/367,661.10 = 161,126.60/x
  3. Step 3: Cross multiply
    245,107.40x = 367,661.10 × 161,126.60
  4. Step 4: Simplify right side
    245,107.40x = 59,239,982,995.26
  5. Step 5: Solve for x
    x = 59,239,982,995.26/245,107.40
  6. Step 6: Final answer
    x = 241,689.90

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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.