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Finding the Fourth Proportional to 200,774.70, 277,256.52 and 129,279.24

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Solution

The fourth proportional to 200,774.70, 277,256.52 and 129,279.24 is: 178,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,774.70 : 277,256.52 = 129,279.24 : x
  2. Step 2: Convert to fraction form
    200,774.70/277,256.52 = 129,279.24/x
  3. Step 3: Cross multiply
    200,774.70x = 277,256.52 × 129,279.24
  4. Step 4: Simplify right side
    200,774.70x = 35,843,512,190.64
  5. Step 5: Solve for x
    x = 35,843,512,190.64/200,774.70
  6. Step 6: Final answer
    x = 178,526.04

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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.