Home / 358,771.29-495,139.38-267,969.78

Finding the Fourth Proportional to 358,771.29, 495,139.38 and 267,969.78

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Solution

The fourth proportional to 358,771.29, 495,139.38 and 267,969.78 is: 369,824.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,771.29 : 495,139.38 = 267,969.78 : x
  2. Step 2: Convert to fraction form
    358,771.29/495,139.38 = 267,969.78/x
  3. Step 3: Cross multiply
    358,771.29x = 495,139.38 × 267,969.78
  4. Step 4: Simplify right side
    358,771.29x = 132,682,390,727.94
  5. Step 5: Solve for x
    x = 132,682,390,727.94/358,771.29
  6. Step 6: Final answer
    x = 369,824.44

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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.