Home / 380,897.08-525,634.60-208,811.91

Finding the Fourth Proportional to 380,897.08, 525,634.60 and 208,811.91

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Solution

The fourth proportional to 380,897.08, 525,634.60 and 208,811.91 is: 288,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,897.08 : 525,634.60 = 208,811.91 : x
  2. Step 2: Convert to fraction form
    380,897.08/525,634.60 = 208,811.91/x
  3. Step 3: Cross multiply
    380,897.08x = 525,634.60 × 208,811.91
  4. Step 4: Simplify right side
    380,897.08x = 109,758,764,788.09
  5. Step 5: Solve for x
    x = 109,758,764,788.09/380,897.08
  6. Step 6: Final answer
    x = 288,158.59

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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.