Home / 207,030.10-309,767.55-188,367.70

Finding the Fourth Proportional to 207,030.10, 309,767.55 and 188,367.70

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Solution

The fourth proportional to 207,030.10, 309,767.55 and 188,367.70 is: 281,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,030.10 : 309,767.55 = 188,367.70 : x
  2. Step 2: Convert to fraction form
    207,030.10/309,767.55 = 188,367.70/x
  3. Step 3: Cross multiply
    207,030.10x = 309,767.55 × 188,367.70
  4. Step 4: Simplify right side
    207,030.10x = 58,350,200,928.14
  5. Step 5: Solve for x
    x = 58,350,200,928.14/207,030.10
  6. Step 6: Final answer
    x = 281,844.05

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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.