Home / 211,880.69-292,397.50-115,086.43

Finding the Fourth Proportional to 211,880.69, 292,397.50 and 115,086.43

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Solution

The fourth proportional to 211,880.69, 292,397.50 and 115,086.43 is: 158,820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,880.69 : 292,397.50 = 115,086.43 : x
  2. Step 2: Convert to fraction form
    211,880.69/292,397.50 = 115,086.43/x
  3. Step 3: Cross multiply
    211,880.69x = 292,397.50 × 115,086.43
  4. Step 4: Simplify right side
    211,880.69x = 33,650,984,415.93
  5. Step 5: Solve for x
    x = 33,650,984,415.93/211,880.69
  6. Step 6: Final answer
    x = 158,820.44

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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.