Home / 211,499.76-316,826.64-127,213.38

Finding the Fourth Proportional to 211,499.76, 316,826.64 and 127,213.38

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Solution

The fourth proportional to 211,499.76, 316,826.64 and 127,213.38 is: 190,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,499.76 : 316,826.64 = 127,213.38 : x
  2. Step 2: Convert to fraction form
    211,499.76/316,826.64 = 127,213.38/x
  3. Step 3: Cross multiply
    211,499.76x = 316,826.64 × 127,213.38
  4. Step 4: Simplify right side
    211,499.76x = 40,304,587,748.44
  5. Step 5: Solve for x
    x = 40,304,587,748.44/211,499.76
  6. Step 6: Final answer
    x = 190,565.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.