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Finding the Fourth Proportional to 360,199.44, 497,136.96 and 209,383.92

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Solution

The fourth proportional to 360,199.44, 497,136.96 and 209,383.92 is: 288,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,199.44 : 497,136.96 = 209,383.92 : x
  2. Step 2: Convert to fraction form
    360,199.44/497,136.96 = 209,383.92/x
  3. Step 3: Cross multiply
    360,199.44x = 497,136.96 × 209,383.92
  4. Step 4: Simplify right side
    360,199.44x = 104,092,485,461.68
  5. Step 5: Solve for x
    x = 104,092,485,461.68/360,199.44
  6. Step 6: Final answer
    x = 288,985.69

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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.