Home / 380,808.07-525,511.87-208,735.59

Finding the Fourth Proportional to 380,808.07, 525,511.87 and 208,735.59

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Solution

The fourth proportional to 380,808.07, 525,511.87 and 208,735.59 is: 288,053.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,808.07 : 525,511.87 = 208,735.59 : x
  2. Step 2: Convert to fraction form
    380,808.07/525,511.87 = 208,735.59/x
  3. Step 3: Cross multiply
    380,808.07x = 525,511.87 × 208,735.59
  4. Step 4: Simplify right side
    380,808.07x = 109,693,030,236.45
  5. Step 5: Solve for x
    x = 109,693,030,236.45/380,808.07
  6. Step 6: Final answer
    x = 288,053.32

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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.