Home / 351,318.40-484,885-200,415.36

Finding the Fourth Proportional to 351,318.40, 484,885 and 200,415.36

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Solution

The fourth proportional to 351,318.40, 484,885 and 200,415.36 is: 276,610.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,318.40 : 484,885 = 200,415.36 : x
  2. Step 2: Convert to fraction form
    351,318.40/484,885 = 200,415.36/x
  3. Step 3: Cross multiply
    351,318.40x = 484,885 × 200,415.36
  4. Step 4: Simplify right side
    351,318.40x = 97,178,401,833.60
  5. Step 5: Solve for x
    x = 97,178,401,833.60/351,318.40
  6. Step 6: Final answer
    x = 276,610.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.