Home / 317,630.45-438,535.22-196,899.84

Finding the Fourth Proportional to 317,630.45, 438,535.22 and 196,899.84

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Solution

The fourth proportional to 317,630.45, 438,535.22 and 196,899.84 is: 271,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,630.45 : 438,535.22 = 196,899.84 : x
  2. Step 2: Convert to fraction form
    317,630.45/438,535.22 = 196,899.84/x
  3. Step 3: Cross multiply
    317,630.45x = 438,535.22 × 196,899.84
  4. Step 4: Simplify right side
    317,630.45x = 86,347,513,667.87
  5. Step 5: Solve for x
    x = 86,347,513,667.87/317,630.45
  6. Step 6: Final answer
    x = 271,848.98

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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.