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Finding the Fourth Proportional to 286,736.04, 395,698.62 and 157,681.32

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Solution

The fourth proportional to 286,736.04, 395,698.62 and 157,681.32 is: 217,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,736.04 : 395,698.62 = 157,681.32 : x
  2. Step 2: Convert to fraction form
    286,736.04/395,698.62 = 157,681.32/x
  3. Step 3: Cross multiply
    286,736.04x = 395,698.62 × 157,681.32
  4. Step 4: Simplify right side
    286,736.04x = 62,394,280,723.78
  5. Step 5: Solve for x
    x = 62,394,280,723.78/286,736.04
  6. Step 6: Final answer
    x = 217,601.81

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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.