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Finding the Fourth Proportional to 372,705.60, 559,204.20 and 136,072.20

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Solution

The fourth proportional to 372,705.60, 559,204.20 and 136,072.20 is: 204,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,705.60 : 559,204.20 = 136,072.20 : x
  2. Step 2: Convert to fraction form
    372,705.60/559,204.20 = 136,072.20/x
  3. Step 3: Cross multiply
    372,705.60x = 559,204.20 × 136,072.20
  4. Step 4: Simplify right side
    372,705.60x = 76,092,145,743.24
  5. Step 5: Solve for x
    x = 76,092,145,743.24/372,705.60
  6. Step 6: Final answer
    x = 204,161.53

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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.