Home / 318,984.31-440,197.03-173,789.70

Finding the Fourth Proportional to 318,984.31, 440,197.03 and 173,789.70

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Solution

The fourth proportional to 318,984.31, 440,197.03 and 173,789.70 is: 239,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,984.31 : 440,197.03 = 173,789.70 : x
  2. Step 2: Convert to fraction form
    318,984.31/440,197.03 = 173,789.70/x
  3. Step 3: Cross multiply
    318,984.31x = 440,197.03 × 173,789.70
  4. Step 4: Simplify right side
    318,984.31x = 76,501,709,784.59
  5. Step 5: Solve for x
    x = 76,501,709,784.59/318,984.31
  6. Step 6: Final answer
    x = 239,829.07

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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.