Home / 380,897.21-525,634.77-208,812.03

Finding the Fourth Proportional to 380,897.21, 525,634.77 and 208,812.03

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Solution

The fourth proportional to 380,897.21, 525,634.77 and 208,812.03 is: 288,158.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,897.21 : 525,634.77 = 208,812.03 : x
  2. Step 2: Convert to fraction form
    380,897.21/525,634.77 = 208,812.03/x
  3. Step 3: Cross multiply
    380,897.21x = 525,634.77 × 208,812.03
  4. Step 4: Simplify right side
    380,897.21x = 109,758,863,362.28
  5. Step 5: Solve for x
    x = 109,758,863,362.28/380,897.21
  6. Step 6: Final answer
    x = 288,158.75

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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.