Home / 211,000.34-316,528.31-68,795.68

Finding the Fourth Proportional to 211,000.34, 316,528.31 and 68,795.68

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Solution

The fourth proportional to 211,000.34, 316,528.31 and 68,795.68 is: 103,202.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,000.34 : 316,528.31 = 68,795.68 : x
  2. Step 2: Convert to fraction form
    211,000.34/316,528.31 = 68,795.68/x
  3. Step 3: Cross multiply
    211,000.34x = 316,528.31 × 68,795.68
  4. Step 4: Simplify right side
    211,000.34x = 21,775,780,325.70
  5. Step 5: Solve for x
    x = 21,775,780,325.70/211,000.34
  6. Step 6: Final answer
    x = 103,202.58

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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.