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Finding the Fourth Proportional to 380,526.91, 525,131 and 229,594.75

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Solution

The fourth proportional to 380,526.91, 525,131 and 229,594.75 is: 316,843.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,526.91 : 525,131 = 229,594.75 : x
  2. Step 2: Convert to fraction form
    380,526.91/525,131 = 229,594.75/x
  3. Step 3: Cross multiply
    380,526.91x = 525,131 × 229,594.75
  4. Step 4: Simplify right side
    380,526.91x = 120,567,320,662.25
  5. Step 5: Solve for x
    x = 120,567,320,662.25/380,526.91
  6. Step 6: Final answer
    x = 316,843.09

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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.