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Finding the Fourth Proportional to 373,129, 559,693.50 and 136,342.60

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Solution

The fourth proportional to 373,129, 559,693.50 and 136,342.60 is: 204,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,129 : 559,693.50 = 136,342.60 : x
  2. Step 2: Convert to fraction form
    373,129/559,693.50 = 136,342.60/x
  3. Step 3: Cross multiply
    373,129x = 559,693.50 × 136,342.60
  4. Step 4: Simplify right side
    373,129x = 76,310,066,993.10
  5. Step 5: Solve for x
    x = 76,310,066,993.10/373,129
  6. Step 6: Final answer
    x = 204,513.90

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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.