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Finding the Fourth Proportional to 401,578.88, 601,976.64 and 191,160.32

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Solution

The fourth proportional to 401,578.88, 601,976.64 and 191,160.32 is: 286,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,578.88 : 601,976.64 = 191,160.32 : x
  2. Step 2: Convert to fraction form
    401,578.88/601,976.64 = 191,160.32/x
  3. Step 3: Cross multiply
    401,578.88x = 601,976.64 × 191,160.32
  4. Step 4: Simplify right side
    401,578.88x = 115,074,047,134.93
  5. Step 5: Solve for x
    x = 115,074,047,134.93/401,578.88
  6. Step 6: Final answer
    x = 286,554.03

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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.