Home / 211,242.39-291,512.82-115,748.83

Finding the Fourth Proportional to 211,242.39, 291,512.82 and 115,748.83

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Solution

The fourth proportional to 211,242.39, 291,512.82 and 115,748.83 is: 159,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,242.39 : 291,512.82 = 115,748.83 : x
  2. Step 2: Convert to fraction form
    211,242.39/291,512.82 = 115,748.83/x
  3. Step 3: Cross multiply
    211,242.39x = 291,512.82 × 115,748.83
  4. Step 4: Simplify right side
    211,242.39x = 33,742,267,845.00
  5. Step 5: Solve for x
    x = 33,742,267,845.00/211,242.39
  6. Step 6: Final answer
    x = 159,732.47

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1.5x scale

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.