Home / 211,310.33-316,983.95-53,538.79

Finding the Fourth Proportional to 211,310.33, 316,983.95 and 53,538.79

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Solution

The fourth proportional to 211,310.33, 316,983.95 and 53,538.79 is: 80,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,310.33 : 316,983.95 = 53,538.79 : x
  2. Step 2: Convert to fraction form
    211,310.33/316,983.95 = 53,538.79/x
  3. Step 3: Cross multiply
    211,310.33x = 316,983.95 × 53,538.79
  4. Step 4: Simplify right side
    211,310.33x = 16,970,935,643.04
  5. Step 5: Solve for x
    x = 16,970,935,643.04/211,310.33
  6. Step 6: Final answer
    x = 80,312.85

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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.