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Finding the Fourth Proportional to 307,001.82, 423,675.59 and 171,035.70

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Solution

The fourth proportional to 307,001.82, 423,675.59 and 171,035.70 is: 236,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,001.82 : 423,675.59 = 171,035.70 : x
  2. Step 2: Convert to fraction form
    307,001.82/423,675.59 = 171,035.70/x
  3. Step 3: Cross multiply
    307,001.82x = 423,675.59 × 171,035.70
  4. Step 4: Simplify right side
    307,001.82x = 72,463,651,108.56
  5. Step 5: Solve for x
    x = 72,463,651,108.56/307,001.82
  6. Step 6: Final answer
    x = 236,036.55

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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.