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Finding the Fourth Proportional to 352,129, 485,938.82 and 201,225.64

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Solution

The fourth proportional to 352,129, 485,938.82 and 201,225.64 is: 277,691.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,129 : 485,938.82 = 201,225.64 : x
  2. Step 2: Convert to fraction form
    352,129/485,938.82 = 201,225.64/x
  3. Step 3: Cross multiply
    352,129x = 485,938.82 × 201,225.64
  4. Step 4: Simplify right side
    352,129x = 97,783,350,055.34
  5. Step 5: Solve for x
    x = 97,783,350,055.34/352,129
  6. Step 6: Final answer
    x = 277,691.84

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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.