Home / 309,348.27-426,857.31-173,371.55

Finding the Fourth Proportional to 309,348.27, 426,857.31 and 173,371.55

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Solution

The fourth proportional to 309,348.27, 426,857.31 and 173,371.55 is: 239,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,348.27 : 426,857.31 = 173,371.55 : x
  2. Step 2: Convert to fraction form
    309,348.27/426,857.31 = 173,371.55/x
  3. Step 3: Cross multiply
    309,348.27x = 426,857.31 × 173,371.55
  4. Step 4: Simplify right side
    309,348.27x = 74,004,911,329.24
  5. Step 5: Solve for x
    x = 74,004,911,329.24/309,348.27
  6. Step 6: Final answer
    x = 239,228.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.