Home / 805,157.49-1,207,708.41-206,123.79

Finding the Fourth Proportional to 805,157.49, 1,207,708.41 and 206,123.79

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Solution

The fourth proportional to 805,157.49, 1,207,708.41 and 206,123.79 is: 309,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,157.49 : 1,207,708.41 = 206,123.79 : x
  2. Step 2: Convert to fraction form
    805,157.49/1,207,708.41 = 206,123.79/x
  3. Step 3: Cross multiply
    805,157.49x = 1,207,708.41 × 206,123.79
  4. Step 4: Simplify right side
    805,157.49x = 248,937,434,684.07
  5. Step 5: Solve for x
    x = 248,937,434,684.07/805,157.49
  6. Step 6: Final answer
    x = 309,178.56

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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.