Home / 272,792.20-408,925.82-139,735.12

Finding the Fourth Proportional to 272,792.20, 408,925.82 and 139,735.12

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Solution

The fourth proportional to 272,792.20, 408,925.82 and 139,735.12 is: 209,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,792.20 : 408,925.82 = 139,735.12 : x
  2. Step 2: Convert to fraction form
    272,792.20/408,925.82 = 139,735.12/x
  3. Step 3: Cross multiply
    272,792.20x = 408,925.82 × 139,735.12
  4. Step 4: Simplify right side
    272,792.20x = 57,141,298,528.80
  5. Step 5: Solve for x
    x = 57,141,298,528.80/272,792.20
  6. Step 6: Final answer
    x = 209,468.23

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1.5x scale

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.