Home / 380,845.68-525,567.47-211,079.94

Finding the Fourth Proportional to 380,845.68, 525,567.47 and 211,079.94

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Solution

The fourth proportional to 380,845.68, 525,567.47 and 211,079.94 is: 291,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,845.68 : 525,567.47 = 211,079.94 : x
  2. Step 2: Convert to fraction form
    380,845.68/525,567.47 = 211,079.94/x
  3. Step 3: Cross multiply
    380,845.68x = 525,567.47 × 211,079.94
  4. Step 4: Simplify right side
    380,845.68x = 110,936,748,978.15
  5. Step 5: Solve for x
    x = 110,936,748,978.15/380,845.68
  6. Step 6: Final answer
    x = 291,290.55

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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.