Home / 211,215.83-316,821.00-51,293.07

Finding the Fourth Proportional to 211,215.83, 316,821.00 and 51,293.07

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Solution

The fourth proportional to 211,215.83, 316,821.00 and 51,293.07 is: 76,938.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,215.83 : 316,821.00 = 51,293.07 : x
  2. Step 2: Convert to fraction form
    211,215.83/316,821.00 = 51,293.07/x
  3. Step 3: Cross multiply
    211,215.83x = 316,821.00 × 51,293.07
  4. Step 4: Simplify right side
    211,215.83x = 16,250,721,922.82
  5. Step 5: Solve for x
    x = 16,250,721,922.82/211,215.83
  6. Step 6: Final answer
    x = 76,938.94

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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.