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Finding the Fourth Proportional to 204,881.70, 307,572.15 and 130,001.70

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Solution

The fourth proportional to 204,881.70, 307,572.15 and 130,001.70 is: 195,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,881.70 : 307,572.15 = 130,001.70 : x
  2. Step 2: Convert to fraction form
    204,881.70/307,572.15 = 130,001.70/x
  3. Step 3: Cross multiply
    204,881.70x = 307,572.15 × 130,001.70
  4. Step 4: Simplify right side
    204,881.70x = 39,984,902,372.66
  5. Step 5: Solve for x
    x = 39,984,902,372.66/204,881.70
  6. Step 6: Final answer
    x = 195,160.93

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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.