Home / 400,863.56-553,238.36-231,103.76

Finding the Fourth Proportional to 400,863.56, 553,238.36 and 231,103.76

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Solution

The fourth proportional to 400,863.56, 553,238.36 and 231,103.76 is: 318,950.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,863.56 : 553,238.36 = 231,103.76 : x
  2. Step 2: Convert to fraction form
    400,863.56/553,238.36 = 231,103.76/x
  3. Step 3: Cross multiply
    400,863.56x = 553,238.36 × 231,103.76
  4. Step 4: Simplify right side
    400,863.56x = 127,855,465,172.23
  5. Step 5: Solve for x
    x = 127,855,465,172.23/400,863.56
  6. Step 6: Final answer
    x = 318,950.08

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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.