Home / 206,815.10-310,222.65-101,839.10

Finding the Fourth Proportional to 206,815.10, 310,222.65 and 101,839.10

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Solution

The fourth proportional to 206,815.10, 310,222.65 and 101,839.10 is: 152,758.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,815.10 : 310,222.65 = 101,839.10 : x
  2. Step 2: Convert to fraction form
    206,815.10/310,222.65 = 101,839.10/x
  3. Step 3: Cross multiply
    206,815.10x = 310,222.65 × 101,839.10
  4. Step 4: Simplify right side
    206,815.10x = 31,592,795,475.62
  5. Step 5: Solve for x
    x = 31,592,795,475.62/206,815.10
  6. Step 6: Final answer
    x = 152,758.65

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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.