Home / 318,883.50-440,027.29-196,356.23

Finding the Fourth Proportional to 318,883.50, 440,027.29 and 196,356.23

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Solution

The fourth proportional to 318,883.50, 440,027.29 and 196,356.23 is: 270,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,883.50 : 440,027.29 = 196,356.23 : x
  2. Step 2: Convert to fraction form
    318,883.50/440,027.29 = 196,356.23/x
  3. Step 3: Cross multiply
    318,883.50x = 440,027.29 × 196,356.23
  4. Step 4: Simplify right side
    318,883.50x = 86,402,100,827.58
  5. Step 5: Solve for x
    x = 86,402,100,827.58/318,883.50
  6. Step 6: Final answer
    x = 270,951.93

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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.