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Finding the Fourth Proportional to 286,001.96, 394,665.54 and 158,669.96

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Solution

The fourth proportional to 286,001.96, 394,665.54 and 158,669.96 is: 218,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,001.96 : 394,665.54 = 158,669.96 : x
  2. Step 2: Convert to fraction form
    286,001.96/394,665.54 = 158,669.96/x
  3. Step 3: Cross multiply
    286,001.96x = 394,665.54 × 158,669.96
  4. Step 4: Simplify right side
    286,001.96x = 62,621,565,445.18
  5. Step 5: Solve for x
    x = 62,621,565,445.18/286,001.96
  6. Step 6: Final answer
    x = 218,955.02

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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.