Home / 380,511.12-525,104.16-219,365.36

Finding the Fourth Proportional to 380,511.12, 525,104.16 and 219,365.36

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Solution

The fourth proportional to 380,511.12, 525,104.16 and 219,365.36 is: 302,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,511.12 : 525,104.16 = 219,365.36 : x
  2. Step 2: Convert to fraction form
    380,511.12/525,104.16 = 219,365.36/x
  3. Step 3: Cross multiply
    380,511.12x = 525,104.16 × 219,365.36
  4. Step 4: Simplify right side
    380,511.12x = 115,189,663,095.90
  5. Step 5: Solve for x
    x = 115,189,663,095.90/380,511.12
  6. Step 6: Final answer
    x = 302,723.51

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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.