Home / 380,625.12-525,318.57-219,448.62

Finding the Fourth Proportional to 380,625.12, 525,318.57 and 219,448.62

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Solution

The fourth proportional to 380,625.12, 525,318.57 and 219,448.62 is: 302,871.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,625.12 : 525,318.57 = 219,448.62 : x
  2. Step 2: Convert to fraction form
    380,625.12/525,318.57 = 219,448.62/x
  3. Step 3: Cross multiply
    380,625.12x = 525,318.57 × 219,448.62
  4. Step 4: Simplify right side
    380,625.12x = 115,280,435,246.87
  5. Step 5: Solve for x
    x = 115,280,435,246.87/380,625.12
  6. Step 6: Final answer
    x = 302,871.33

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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.