Home / 380,511.08-525,103.98-219,365.36

Finding the Fourth Proportional to 380,511.08, 525,103.98 and 219,365.36

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Solution

The fourth proportional to 380,511.08, 525,103.98 and 219,365.36 is: 302,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,511.08 : 525,103.98 = 219,365.36 : x
  2. Step 2: Convert to fraction form
    380,511.08/525,103.98 = 219,365.36/x
  3. Step 3: Cross multiply
    380,511.08x = 525,103.98 × 219,365.36
  4. Step 4: Simplify right side
    380,511.08x = 115,189,623,610.13
  5. Step 5: Solve for x
    x = 115,189,623,610.13/380,511.08
  6. Step 6: Final answer
    x = 302,723.44

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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.