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Finding the Fourth Proportional to 401,084.28, 553,496.34 and 239,946.12

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Solution

The fourth proportional to 401,084.28, 553,496.34 and 239,946.12 is: 331,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,084.28 : 553,496.34 = 239,946.12 : x
  2. Step 2: Convert to fraction form
    401,084.28/553,496.34 = 239,946.12/x
  3. Step 3: Cross multiply
    401,084.28x = 553,496.34 × 239,946.12
  4. Step 4: Simplify right side
    401,084.28x = 132,809,299,217.20
  5. Step 5: Solve for x
    x = 132,809,299,217.20/401,084.28
  6. Step 6: Final answer
    x = 331,125.67

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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.