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Finding the Fourth Proportional to 401,503.81, 554,121.56 and 240,358.82

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Solution

The fourth proportional to 401,503.81, 554,121.56 and 240,358.82 is: 331,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,503.81 : 554,121.56 = 240,358.82 : x
  2. Step 2: Convert to fraction form
    401,503.81/554,121.56 = 240,358.82/x
  3. Step 3: Cross multiply
    401,503.81x = 554,121.56 × 240,358.82
  4. Step 4: Simplify right side
    401,503.81x = 133,188,002,334.90
  5. Step 5: Solve for x
    x = 133,188,002,334.90/401,503.81
  6. Step 6: Final answer
    x = 331,722.88

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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.