Home / 351,533.12-485,136.96-215,582.72

Finding the Fourth Proportional to 351,533.12, 485,136.96 and 215,582.72

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Solution

The fourth proportional to 351,533.12, 485,136.96 and 215,582.72 is: 297,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,533.12 : 485,136.96 = 215,582.72 : x
  2. Step 2: Convert to fraction form
    351,533.12/485,136.96 = 215,582.72/x
  3. Step 3: Cross multiply
    351,533.12x = 485,136.96 × 215,582.72
  4. Step 4: Simplify right side
    351,533.12x = 104,587,145,409.33
  5. Step 5: Solve for x
    x = 104,587,145,409.33/351,533.12
  6. Step 6: Final answer
    x = 297,517.19

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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.