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Finding the Fourth Proportional to 200,492.68, 276,520.26 and 128,880.04

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Solution

The fourth proportional to 200,492.68, 276,520.26 and 128,880.04 is: 177,751.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,492.68 : 276,520.26 = 128,880.04 : x
  2. Step 2: Convert to fraction form
    200,492.68/276,520.26 = 128,880.04/x
  3. Step 3: Cross multiply
    200,492.68x = 276,520.26 × 128,880.04
  4. Step 4: Simplify right side
    200,492.68x = 35,637,942,169.61
  5. Step 5: Solve for x
    x = 35,637,942,169.61/200,492.68
  6. Step 6: Final answer
    x = 177,751.84

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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.