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Finding the Fourth Proportional to 240,871.80, 360,918.90 and 201,214.20

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Solution

The fourth proportional to 240,871.80, 360,918.90 and 201,214.20 is: 301,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,871.80 : 360,918.90 = 201,214.20 : x
  2. Step 2: Convert to fraction form
    240,871.80/360,918.90 = 201,214.20/x
  3. Step 3: Cross multiply
    240,871.80x = 360,918.90 × 201,214.20
  4. Step 4: Simplify right side
    240,871.80x = 72,622,007,728.38
  5. Step 5: Solve for x
    x = 72,622,007,728.38/240,871.80
  6. Step 6: Final answer
    x = 301,496.51

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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.