Home / 209,074.41-312,031.58-188,896.28

Finding the Fourth Proportional to 209,074.41, 312,031.58 and 188,896.28

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Solution

The fourth proportional to 209,074.41, 312,031.58 and 188,896.28 is: 281,916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,074.41 : 312,031.58 = 188,896.28 : x
  2. Step 2: Convert to fraction form
    209,074.41/312,031.58 = 188,896.28/x
  3. Step 3: Cross multiply
    209,074.41x = 312,031.58 × 188,896.28
  4. Step 4: Simplify right side
    209,074.41x = 58,941,602,199.88
  5. Step 5: Solve for x
    x = 58,941,602,199.88/209,074.41
  6. Step 6: Final answer
    x = 281,916.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.