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Finding the Fourth Proportional to 380,562.96, 525,194.19 and 210,797.07

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Solution

The fourth proportional to 380,562.96, 525,194.19 and 210,797.07 is: 290,909.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,562.96 : 525,194.19 = 210,797.07 : x
  2. Step 2: Convert to fraction form
    380,562.96/525,194.19 = 210,797.07/x
  3. Step 3: Cross multiply
    380,562.96x = 525,194.19 × 210,797.07
  4. Step 4: Simplify right side
    380,562.96x = 110,709,396,433.02
  5. Step 5: Solve for x
    x = 110,709,396,433.02/380,562.96
  6. Step 6: Final answer
    x = 290,909.54

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Double scale
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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.